Multiple choice

A new book promises to shed new light on the controversial Roswell Incident, and the extent to which the evidence of extraterrestrial visit had been destroyed by the government before the news channels caught told us about it.

  1. on the extent to which the evidence of extraterrestrial visit had been destroyed by the government before the news channels told us about it

  2. on the extent by which the evidence of extraterrestrial visit was destroyed by the government before the news channels told us about it

  3. on the extent to which the evidence of extraterrestrial visit had been destroyed by the government before the news channels told us about the alien visitation

  4. how the evidence of extraterrestrial visit had been destroyed before the news channels caught wind of it being done by the government

  5. how the government had destroyed evidence of alien visit before the news channels had told us about the alien visit
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Correct; the past perfect tense (in this case, 'had destroyed' or 'had been destroyed') is used for an event that precedes another event in the past (in this case, before news channels told us).

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