單項選擇題It’s not advisable to cut()the power supply.

A.out
B.off
C.down
D.away


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1.單項選擇題It’s raining now. The dockers()stay inside.

A.want
B.wants
C.are wanting
D.want to

3.單項選擇題Keep clear()the buoy.

A.to
B.on
C.of
D.for

4.單項選擇題Large vessel leaving.Keep clear()approach channel.

A.off
B.reach
C.from
D.of

5.單項選擇題Let’s submit the case()the cargo surveyor.

A.to
B.of
C.for
D.about