题目内容

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

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

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27.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

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

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

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

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

30.If he 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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