Question

Questão 03: Choose the alternative containing the correct verb tenses to complete gaps (1) and (2). "In 2001, when these attacks ___________ (1), the cellular network was still growing and was not as robust as it is today.This letter is just one of the many objects that The National Museum of American History __________(2) since 2001."

A) have happened, collected
B) have happened, have collected
C) has happened, has collected
D) happened, has collected
E) happened, have collected

Answer 1

D) happened/ has collected