She gets a chance to act _______ her plan.
A. at
B. out
C. over
D. as
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the investigation, the committee published the report on the cause of the accident.
A.Completed
B.Having completed
C.Completing
D.To have completed
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