單項選擇題

The winch at hatch No.3 is（）trouble.

A.at
B.in
C.on
D.over

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單項選擇題

The winch is liable（）worn-out in this way.

A.getting
B.to get
C.to have got
D.for getting

單項選擇題

There are 65（）of grade No.3 rubber short.

A.bags
B.bales
C.sacks
D.cases