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Grigory Rodchenkov, the former head of the Russian testing laboratory 24 Sep 2018, 18:11
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51% (02:00) correct 49% (02:15) wrong based on 270 sessions

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Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and the FSB, the KGB successor agency, had assisted.

A) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and the FSB, the KGB successor agency, had assisted.

B) Grigory Rodchenkov, the former head of the Russian testing laboratory, had turned whistleblower and revealed that he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, had assisted.

C) Grigory Rodchenkov, the former head of the Russian testing laboratory, had turned whistleblower and revealed that he was helping to dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, assisted.

D) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed that he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, had assisted.

E) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed that he had helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, assisted.
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E
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Grigory Rodchenkov, the former head of the Russian testing laboratory 24 Sep 2018, 20:58
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Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and the FSB, the KGB successor agency, had assisted.

A) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and the FSB, the KGB successor agency, had assisted.

B) Grigory Rodchenkov, the former head of the Russian testing laboratory, had turned whistleblower and revealed that he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, had assisted.

C) Grigory Rodchenkov, the former head of the Russian testing laboratory, had turned whistleblower and revealed that he was helping to dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, assisted.

D) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed that he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, had assisted.

E) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed that he had helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, assisted.
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B.

Sequence of events - [had] turned whistle-blower, agencies [had] assisted, and he revealed [simple past].
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Grigory Rodchenkov, the former head of the Russian testing laboratory 25 Sep 2018, 02:59
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redskull1
Why is C wrong....?

Posted from my mobile device
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In option C ‘Was helping to’ is wrong


Sent from my iPhone using GMAT Club Forum mobile app
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Grigory Rodchenkov, the former head of the Russian testing laboratory 25 Sep 2018, 06:48
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How to choose between D and E?
Quote:
D) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed that he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, had assisted.

E) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed that he had helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, assisted.
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D is saying the FSB had assisted him, why is that incorrect? Please help
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Grigory Rodchenkov, the former head of the Russian testing laboratory 25 Sep 2018, 19:14
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Looks like a legit 700-level question. Please help explain this tense in detail, with a bit of theory.
Thanks in advance.
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Grigory Rodchenkov, the former head of the Russian testing laboratory 25 Sep 2018, 19:28
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Sreyoshi007
How to choose between D and E?
Quote:
D) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed that he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, had assisted.

E) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed that he had helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, assisted.

D is saying the FSB had assisted him, why is that incorrect? Please help
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Sreyoshi007 Muthusivakathir

The sequence of events here on a timeline is
(1) Grigory first helped dope dozens of athletes while FSB assisted this guy, then
(2) Grigory turned whistle blower and revealed

So here, we'll need past perfect for the event happened in the past i.e., the first event

A) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and the FSB, the KGB successor agency, had assisted.
--> We need a past perfect here 'he had helped' to show that the 1st event took place before the 2nd and not parallel to it. Also 'that' is missing 'revealed that'

B) Grigory Rodchenkov, the former head of the Russian testing laboratory, had turned whistleblower and revealed that he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, had assisted.
--> Past perfect is used for the incorrect event (The latter event). Hence, this can be eliminated

C) Grigory Rodchenkov, the former head of the Russian testing laboratory, had turned whistleblower and revealed that he was helping to dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, assisted.
--> 'He was helping' is wrong tense. This completely changes the sequence of events intended.

D) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed that he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, had assisted
--> Same as A

E) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed that he had helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, assisted.
--> Option E correctly uses the past perfect for the earlier event, thus correcting the error in D.
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Grigory Rodchenkov, the former head of the Russian testing laboratory 25 Sep 2018, 23:32
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Sreyoshi007
How to choose between D and E?
Quote:
D) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed that he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, had assisted.

E) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed that he had helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, assisted.

D is saying the FSB had assisted him, why is that incorrect? Please help

Sreyoshi007 Muthusivakathir

The sequence of events here on a timeline is
(1) Grigory first helped dope dozens of athletes while FSB assisted this guy, then
(2) Grigory turned whistle blower and revealed


So here, we'll need past perfect for the event happened in the past i.e., the first event

A) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and the FSB, the KGB successor agency, had assisted.
--> We need a past perfect here 'he had helped' to show that the 1st event took place before the 2nd and not parallel to it. Also 'that' is missing 'revealed that'

B) Grigory Rodchenkov, the former head of the Russian testing laboratory, had turned whistleblower and revealed that he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, had assisted.
--> Past perfect is used for the incorrect event (The latter event). Hence, this can be eliminated

C) Grigory Rodchenkov, the former head of the Russian testing laboratory, had turned whistleblower and revealed that he was helping to dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, assisted.
--> 'He was helping' is wrong tense. This completely changes the sequence of events intended.

D) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed that he helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, had assisted
--> Same as A

E) Grigory Rodchenkov, the former head of the Russian testing laboratory, turned whistleblower and revealed that he had helped dope dozens of athletes in the 2014 Winter Games in Sochi, Russia, and that the FSB, the KGB successor agency, assisted.
--> Option E correctly uses the past perfect for the earlier event, thus correcting the error in D.
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mikemcgarry Shouldn't the option E contain had assisted in the end.
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Grigory Rodchenkov, the former head of the Russian testing laboratory 26 Sep 2018, 00:05
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Moderators- please help, should not it be "had assisted"? My understanding is that only with the assistance he could "help dope citizens" of athletes.
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Grigory Rodchenkov, the former head of the Russian testing laboratory 30 Sep 2018, 00:58
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Muskan01 I agree that "had assisted" makes more sense, considering that it should be in the same time frame as "had helped dope." Unfortunately, there's no viable answer that gives us past perfect for both. Despite its flaw, I'd say that E is better than the rest, but this is one more advertisement for studying from official SC questions!
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Grigory Rodchenkov, the former head of the Russian testing laboratory 28 Dec 2021, 23:28
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