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單項選擇題

I am proceeding（）reduced speed.

A.at
B.with
C.on
D.within

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單項選擇題

Get everything ready（）sailing.

A.on
B.ahead of
C.prior to
D.in front of

單項選擇題

Captain said that very clearly so that nobody was in any（）about what was meant.

A.doubt
B.question
C.wonder
D.consideration