GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

 It is currently 02 Apr 2020, 01:03

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Dr. Martin A. Tidball, along with colleagues at two universities, are

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 62480
Dr. Martin A. Tidball, along with colleagues at two universities, are  [#permalink]

### Show Tags

12 Nov 2019, 00:02
00:00

Difficulty:

5% (low)

Question Stats:

83% (00:55) correct 17% (01:24) wrong based on 96 sessions

### HideShow timer Statistics

Competition Mode Question

Dr. Martin A. Tidball, along with colleagues at two universities, are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion.

A. are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion

B. is working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug

C. is working to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhancing facilitated diffusion with the help of a drug

D. are working hard to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhance facilitated diffusion with the help of a drug

E. are working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug

_________________
Intern
Joined: 03 Oct 2019
Posts: 2
Re: Dr. Martin A. Tidball, along with colleagues at two universities, are  [#permalink]

### Show Tags

12 Nov 2019, 00:41
1
The correct answer is B. Firstly, we need singular , because we have <<along with>> . Secondly, the phrase is work on a project, not work to. And last but not least, we want parallel structure.
Intern
Joined: 10 Oct 2019
Posts: 10
GMAT 1: 400 Q35 V12
Re: Dr. Martin A. Tidball, along with colleagues at two universities, are  [#permalink]

### Show Tags

12 Nov 2019, 00:58
1
there are 2 prob with original sentence.
first problem is subject dr matin a. tidball is singular sub and doesn't agree with plural verb are .
3 actions are not parallel have to be in present participle. (____ing) form.
Manager
Joined: 07 Sep 2019
Posts: 116
Location: Viet Nam
Concentration: Marketing, Strategy
WE: Brand Management (Consumer Products)
Re: Dr. Martin A. Tidball, along with colleagues at two universities, are  [#permalink]

### Show Tags

12 Nov 2019, 01:03
1
I think (B)

1st split: S-V agreement
"Dr. Martin A. Tidball, along with colleagues at two universities," -> the verb must agree with subject "Dr. Martin A. Tidball", which is a singular noun -> A, D, and E are out

2nd split: parallelism
B. is working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug
=> correct 3 paralleled actions in V-ing forms
C. is working to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhancing facilitated diffusion with the help of a drug
=> parallelism errors

3rd split: meaning of "to work on"
To work on = to try hard to achieve and improve something. I think "to work on" is better than "to work to" in this context because "to work on" conveys the emphasis on the ongoing effort of Dr. Martin A. Tidball and colleagues are making.However, the first 2 splits are enough to arrive at (B).
_________________
--- One day you will thank yourself for not giving up ---
Manager
Joined: 22 Jun 2018
Posts: 139
Location: Ukraine
Concentration: Technology, Entrepreneurship
GMAT 1: 600 Q44 V28
GMAT 2: 630 Q42 V34
GMAT 3: 660 Q48 V34
GPA: 4
Re: Dr. Martin A. Tidball, along with colleagues at two universities, are  [#permalink]

### Show Tags

12 Nov 2019, 01:16
1
First easy split: is/are: addictive phrases such as "along with", "accompanied by", "as well as" do not create compound subject (which requires plural verb) as does "and". So, options A, D, and E out.

Between B and C: B maintains parallelism while C does not. So B is correct answer.
GMAT Club Legend
Joined: 18 Aug 2017
Posts: 6048
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: Dr. Martin A. Tidball, along with colleagues at two universities, are  [#permalink]

### Show Tags

12 Nov 2019, 01:29
1
Dr. Martin A. Tidball, along with colleagues at two universities, ; Singular so option B & C left
Option B has llism -ing
is working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug
IMO B is correct

Dr. Martin A. Tidball, along with colleagues at two universities, [url]are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion.
[/url]
A. are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion

B. is working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug

C. is working to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhancing facilitated diffusion with the help of a drug

D. are working hard to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhance facilitated diffusion with the help of a drug

E. are working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug
Senior Manager
Joined: 01 Mar 2019
Posts: 484
Location: India
Concentration: Strategy, Social Entrepreneurship
Schools: Ross '22, ISB '20, NUS '20
GMAT 1: 580 Q48 V21
GPA: 4
Re: Dr. Martin A. Tidball, along with colleagues at two universities, are  [#permalink]

### Show Tags

12 Nov 2019, 02:12
1
'is' should be referred to Dr.Martin

So A,D,E are out
C- lacks the parallelism to uncover,discover,enhancing
B- without any of the above flaws

OA:B
VP
Joined: 24 Nov 2016
Posts: 1350
Location: United States
Re: Dr. Martin A. Tidball, along with colleagues at two universities, are  [#permalink]

### Show Tags

12 Nov 2019, 02:25
1
Quote:
Dr. Martin A. Tidball, along with colleagues at two universities, are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion.

A. are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion
B. is working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug
C. is working to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhancing facilitated diffusion with the help of a drug
D. are working hard to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhance facilitated diffusion with the help of a drug
E. are working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug

MEANING
Dr. M [sing] is [sing] working on uncovering…discovering…and enhancing diffusion via drug.
A list must maintain parallelism;

A. "are" plural, "Dr. M" sing, sva; "uncovering…a discovery…a drug" not parallel;
C. "to uncover…[to] discover…and [to] enhancing" not parallel and unintended;
D. "are" plural, "Dr. M" sing, sva; "with the help of a drug" unintended;
E. "are" plural, "Dr. M" sing, sva;

Ans (B)
Manager
Joined: 30 Nov 2017
Posts: 67
GMAT 1: 690 Q49 V35
Re: Dr. Martin A. Tidball, along with colleagues at two universities, are  [#permalink]

### Show Tags

12 Nov 2019, 02:50
1
S-V Agreement.
Eliminate A,D&E because of usage of are. Between B&C, c isnt parallet.

IMO. B
Manager
Joined: 31 Oct 2015
Posts: 95
Re: Dr. Martin A. Tidball, along with colleagues at two universities, are  [#permalink]

### Show Tags

12 Nov 2019, 10:07
1
A. are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion
Dr.Tidbal is a singular subject.

B. is working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug
Correct

C. is working to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhancing facilitated diffusion with the help of a drug
Not parallel

D. are working hard to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhance facilitated diffusion with the help of a drug
SV no agreement

E. are working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug
SV no agreement

VP
Joined: 20 Jul 2017
Posts: 1483
Location: India
Concentration: Entrepreneurship, Marketing
WE: Education (Education)
Re: Dr. Martin A. Tidball, along with colleagues at two universities, are  [#permalink]

### Show Tags

12 Nov 2019, 10:34
1
Dr. Martin A. Tidball, along with colleagues at two universities, is —> correct: are —> wrong. (Note that along with is an additive)

So, options A, D & E are out.

Between B & C, option B maintains parallelism (Uncovering, discovering & enhancing)

IMO Option B

Posted from my mobile device
CR Forum Moderator
Joined: 18 May 2019
Posts: 797
Re: Dr. Martin A. Tidball, along with colleagues at two universities, are  [#permalink]

### Show Tags

12 Nov 2019, 11:30
1
The right answer is option B.

The subject of the sentence is Dr. Martin Tidball, which is singular, hence the verb has to be singular as well. However, options A, D, and E use the plural verb are instead of the singular verb is. We can therefore eliminate options A,D, and E.

Between B and C, there is a parallelism error in option C. The infinitive forms of the verbs to uncover and discover are not parallel to the gerund enhancing. We can therefore eliminate option C.

Option B is correct. Uncovering, discovering, and enhancing are rightly parallel.

Posted from my mobile device
Manager
Joined: 17 Mar 2019
Posts: 169
Re: Dr. Martin A. Tidball, along with colleagues at two universities, are  [#permalink]

### Show Tags

12 Nov 2019, 19:47
Dr. Martin A. Tidball, along with colleagues at two universities, are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion.

A. are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion

B. is working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug

C. is working to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhancing facilitated diffusion with the help of a drug

D. are working hard to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhance facilitated diffusion with the help of a drug

E. are working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug

Error: Subject verb error
Dr Martin along with his colleagues additive phrase should be singular. Options A, D and E eliminated

In between B and C if we look for parallelism C correctly emphasizes on working and enhancing.

IMO C
Math Expert
Joined: 02 Sep 2009
Posts: 62480
Re: Dr. Martin A. Tidball, along with colleagues at two universities, are  [#permalink]

### Show Tags

12 Nov 2019, 23:38
Bunuel wrote:

Competition Mode Question

Dr. Martin A. Tidball, along with colleagues at two universities, are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion.

A. are working on uncovering the mysteries of glucose uptake, a discovery of new details about active ATP transport, and a drug to enhance facilitated diffusion

B. is working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug

C. is working to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhancing facilitated diffusion with the help of a drug

D. are working hard to uncover the mysteries of glucose uptake, discover new details about active ATP transport, and enhance facilitated diffusion with the help of a drug

E. are working on uncovering the mysteries of glucose uptake, discovering new details about ATP transport, and enhancing facilitated diffusion via a drug

Official Explanation

There are two main problems with the original sentence.

(1) The subject (Dr. Martin A. Tidball) is singular and does not agree with the verb (are), which is plural.

(2) The three actions Dr. Tidball is working on are not listed in parallel form. The correct listing would have each action as a present participle: uncovering...discovering...enhancing

Note: You could also write the sentence in a parallel fashion with infinitives: is working hard to uncover the mysteries of glucose uptake, discover new details concerning active ATP transport, and enhance facilitated diffusion using a drug.

A. the subject (Dr. Martin A. Tidball, which is singular) does not agree with the verb (are, which is plural); the three actions Dr. Tidball is working on are not listed in parallel form (i.e., the phrase uncovering...a discovery...and a drug to enhance is not parallel)

B. the subject (Dr. Martin A. Tidball, which is singular) agrees with the verb (is, which is singular); the three actions Dr. Tidball is working on are listed in parallel form (i.e., the phrase uncovering...discovering...and enhancing is parallel)

C. the three actions Dr. Tidball is working on are not listed in parallel form (i.e., the phrase to uncover...[to] discover...and enhancing is not parallel)

D. the subject (Dr. Martin A. Tidball, which is singular) does not agree with the verb (are, which is plural)

E. the subject (Dr. Martin A. Tidball, which is singular) does not agree with the verb (are, which is plural)
_________________
Re: Dr. Martin A. Tidball, along with colleagues at two universities, are   [#permalink] 12 Nov 2019, 23:38
Display posts from previous: Sort by