The researchers from the North Carolina University notified about the latest contamination to the officials of FDA earlier than the researchers from the University of California.
a. earlier than did the researchers
b. earlier than the researchers had
Why is B wrong ?
Choice (B) does tense error with use of past perfect "had". Past Perfect tense with "Had" is used when the sentence has two events occurred at different times in the past and there is no indication of sequence of events.
In this problem, the sentence clearly says that researches from Carolina university notified earlier
than researches from U California university. Here "earlier" clarifies the sequence of events, hence "had" is not required.
Tough RCs: Passage1 | Passage2 | Passage3 | Passage4 | Passage5 | Passage6 | Passage7