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18 Oct 2018, 06:07
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
86% (01:03) correct
14%
(01:05)
wrong
based on 145
sessions
History
Date
Time
Result
Not Attempted Yet
Since 1990 there are three times as many cases of West Nile virus diagnosed, and there has been no progress in the search for a vaccine.
(A) Since 1990 there are three times as many cases of West Nile virus diagnosed
(B) The diagnosis of cases of West Nile virus was only one-third in 1990
(C) The diagnosis of cases of West Nile virus has increased three times from 1990 on
(D) Tripling since 1990, there are now three times as many cases of West Nile virus diagnosed
(E) The number of diagnoses of West Nile virus has tripled since 1990
(A) Since 1990 there are three times as many cases of West Nile virus diagnosed
(B) The diagnosis of cases of West Nile virus was only one-third in 1990
(C) The diagnosis of cases of West Nile virus has increased three times from 1990 on
(D) Tripling since 1990, there are now three times as many cases of West Nile virus diagnosed
(E) The number of diagnoses of West Nile virus has tripled since 1990
18 Oct 2018, 06:32
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Since 1990 there are three times as many cases of West Nile virus diagnosed, and there has been no progress in the search for a vaccine.
(A) Since 1990 there are three times as many cases of West Nile virus diagnosed : With since ,here, present perfect tense should be used.The non underlined part after and is also in present perfect tense.
(B) The diagnosis of cases of West Nile virus was only one-third in 1990: Meaning error. Original sentence conveys increase in number of instances of diagnosis.
(C) The diagnosis of cases of West Nile virus has increased three times from 1990 on : Same as in B.
(D) Tripling since 1990, there are now three times as many cases of West Nile virus diagnosed : After the modifier, doer of the action tripling should be mentioned.
(E) The number of diagnoses of West Nile virus has tripled since 1990 : CORRECT
(A) Since 1990 there are three times as many cases of West Nile virus diagnosed : With since ,here, present perfect tense should be used.The non underlined part after and is also in present perfect tense.
(B) The diagnosis of cases of West Nile virus was only one-third in 1990: Meaning error. Original sentence conveys increase in number of instances of diagnosis.
(C) The diagnosis of cases of West Nile virus has increased three times from 1990 on : Same as in B.
(D) Tripling since 1990, there are now three times as many cases of West Nile virus diagnosed : After the modifier, doer of the action tripling should be mentioned.
(E) The number of diagnoses of West Nile virus has tripled since 1990 : CORRECT
saurabh9gupta
Joined: 10 Jan 2013
Last visit: 28 Jul 2023
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GRE 1: Q163 V155
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18 Oct 2018, 09:00
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I also go with E.
With since you use present perfect tense
Posted from my mobile device
With since you use present perfect tense
Posted from my mobile device
