Topics: Verb Tenses
Christopher Columbus ……… America more than 500 years ago.
A. discovered
B. has discovered
C. had discovered
D. had been discovering
Select your answer:
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Grammar › ViewIn the future, technology … help us solve problems like global warming.
A. do
B. might
C. we’ll
Tenses of Verbs › View
It is surprising that you have not _________ Mr. Jones yet.
A. met
B. meet
C. are meeting