單項選擇題

We must （）to inspect the problems about the safety of fire prevention.

A.prepares
B.preparing
C.prepared
D.prepare

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單項選擇題

When you keep a gangway watch, you should （）the mooring lines according to the rise and fall of the tide.

A.adjusted
B.adjusting
C.adjusts
D.adjust

單項選擇題

Lower gangway into place and （）safety net.

A.fast
B.make fast
C.fasten
D.fastened