题目内容

According to ( ) they have told me, they should return within about one week.

A. that
B. it
C. what
D. which

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She ought to ( ) my letter a week ago. But she was busy with her work.

A. have answered
B. answering
C. answer
D. be answering

The law required that everyone ( ) his car checked at least once a month.

A. has
B. had
C. have
D. would have

If ( ) successfully, the plan will completely change the traffic conditions in our city.

A. carrying out
B. carrried out
C. to carry out
D. carry out

We tried () to reach you last night,but your phone was always busy.

A. in doubt
B. in person
C. in hand
D. in vain

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