Twelve US astronauts … on the moon since 1969. ... | GrammarQuiz.net

Topics: Past Tenses

Twelve US astronauts … on the moon since 1969.

A. have walked

B. didn’t walk

C. walked

D. has walked

Select your answer:

Random Topics:

Indefinite Article Uncountable Nouns Causative Verb Adverbs or Adjectives Adverbial Clauses Present Continous Tense Vocabulary and Prepositions Verb 3 forms Prepositions and Prepositional Phrases So or Such

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. She usually ______ (wake up) at 7 AM.

A. wakes up

B. is waking up

C. has woken up

D. has been waking up

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He ___ work tomorrow, so he can’t go out tonight.

A. must

B. has to

C. can

D. may

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