单项选择题

The things talked about in this report ______ over a year ago.

A. had taken place
B. took place
C. have taken place
D. were taken place
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A new plane is going to ______ by us.
A. make
B. be make
C. made
D. be made
单项选择题
The book must ______ to the library.
A. return
B. be returned
C. to be returned
D. to returned
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