题目内容

-That must habe been a hard project?-yeah, it ____us a whole year to finish the work.

A. took
B. has taken
C. takes
D. was taking

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Scientists have many theories about how the universe ____ into being.

A. came
B. was coming
C. had come
D. would come

-Bob has gone to Califonia.-Oh, can you tell me when he____?

A. has left
B. left
C. is leaving
D. would leave

The computer is different from the one I ____in my last job.

A. use
B. have used
C. used
D. had used

What did you see ____?

A. now
B. every day
C. these days
D. just now