A.locateB.look forC.watchD.look outI can not（）you on my……

单项选择题I am ready（）your message.

A.to receive
B.receiving
C.received
D.receive

单项选择题I am proceeding at a slackened speed. Here SLACKENED stands for（）.

A.reduced
B.increased
C.normal
D.half

单项选择题I am proceeding（）reduced speed.

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

单项选择题Get everything ready（）sailing.

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

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

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