题目内容

the investigation, the committee published the report on the cause of the accident.

A.Completed
B.Having completed
C.Completing
D.To have completed

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The report shows that over half of the women are suffering second-hand smoke at the work­place.

A.in
B.for
C.on
D. from

Our goal is to fulfill the needs of our clients,challenging they may be.

A.however
B.whenever
C.wherever
D.whatever

Only after the secretary saw the train disappear in sight the railway station.

A.he leaves
B.has he left
C.he left
D. A) did he leave

If they had worked harder, they the project ahead of time.

A.will finish
B.would have finished
C.have finished
D. had finished

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