單項(xiàng)選擇題

The Loran needs（）.

A.repairing
B.to repair
C.repairs
D.have repaired

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單項(xiàng)選擇題

The equipment is very old．It’s not worth（）.

A.repairing
B.to repair
C.repair
D.to be repaired

單項(xiàng)選擇題

The deck control valve to be（）after being repaired.

A.moved and fitted again
B.removed and refitted
C.reproduced and put on again
D.returned and attached again