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Have you finished ________ that book?

[　　]

I'd like you ________ all these words to us.

[　　]

Professor Wang often spoke to his students and ________ with great interest

[　　]

The construction of the library ________ by the end of next month.

[　　]

A．must have completed

B．must have been completed

C．must be completed

D．must complete

More than 30 people ________ in traffic accidents over the past few months.

[　　]

The problem ________ at the meeting last Friday.

[　　]

What he had said at the meeting ________ true.

[　　]

He wanted to know how this ________.

[　　]

When I got to his home, I ________ that he ________ to Beijing.

[　　]

One ________ if he or she breaks the law.

[　　]