Aviation officials have not only failed to determine the cause of the

Question

Aviation officials have not only failed to determine the cause of the  crash, but they have also ignored demands by the pilots union that the investigation should be expedited .

(A) crash, but they have also ignored demands by the pilots union that the investigation should be expedited
(B) crash but also ignored demands by the pilots union that the investigation be expedited
(C) crash but have ignored demands for expediting the investigation by the pilots’ union
(D) crash, but they are also ignoring the pilots’ union’s demands to expedite the investigation
(E) crash: the demands by the pilots’ union that the investigation should be expedited have also been ignored

DinoPen · Answer

I think the answer choice is A.
The sentence has not only / but also used correctly.
Hence, C and E is out (no but also to be found)
B is worded in a passive tone. (A is better)
D is out because of the gerund. (not parallel to prior clause)

adstudy · Answer

IMO answer should be  B.

Only option that maintains parallelism around idiom  Not Only.... But also....

daagh · Answer

Ans is B for adhering to the 'not only' but also' correlative conjunction parallelism norms.

ankaua · Answer

The question tests || and the use of subjunctive mood.

To maintain parallelism in idiomatic construction "not only X but also Y" we need: "have  not only  failed ...  but also  ignored". We do not need to repeat "have" a second time ("twice inside, once outside" rule)

To follow grammatical usage of subjunctive (BossyVerbs), we need to follow a formula:  BossyVerb + THAT + bare infinitive

- "they" breaks ||, as a verb is not parallel to a full clause 
 -  Correct 
 - "have" is excessive, we already have "have" before "not only ... but also" that relate to both vers inside the idiomatic constuction 
 - Incorrect for same reason as B 
 - violation of subjunctive "formula"

shailee09 · Answer

I have two doubts here.
1. not only X, but also Y. (I think there should be a comma between the not only & but also)
2. The verb in the OA (B) is not "demands", so is the use of subjunctive verb form after "that" is OK?

EducationAisle · Answer

That's a very good question  shailee09 . It seems that GMAT does  not  really have a  position  on this.

For example, following two correct official answers:

The psychologist William James believed that facial expressions not only provide a visible sign of an emotion but also actually contribute to the feeling itself .
- Notice there is no comma before  but also .

Many policy experts say that shifting a portion of health-benefit costs back to the workers not only helps to control the employer's costs, but also helps to limit medical spending by making patients more careful consumers . 
- Notice there is a comma before  but also .

In any case, there are  very few  instances in GMAT where you should ignore/select an option solely based on  presence/absence  of a  comma  (a notable exception is a  run-on  sentence).

The word that triggers the subjunctive ( demands  in this case) need  not  always be a verb.

For example:

People complied with the Government's diktat that everyone maintain social distancing.

Again,  diktat  is not a  verb , but triggers subjunctive.

shailee09 · Answer

Thanks  EducationAisle  for promptly clearing the doubts.

Posted from my mobile device

VerbalBot · Answer

Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.

Aviation officials have not only failed to determine the cause of the

Prep Toolkit

Top 5 GMAT Debrief Videos

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards

GMAT Sentence Correction (SC - EA only) Questions

Aviation officials have not only failed to determine the cause of the

Prep Toolkit

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards