单项选择题
A.Bitumen B.Cement wash C.Paint D.Varnish
Why are （）easy to be rusted?A.ropesB.glovesC.shipsD.dra...
单项选择题Why are （）easy to be rusted?
A.ropes B.gloves C.ships D.drafts
Everything on the bridge should be kept （）.A.dirtyB.bad...
单项选择题Everything on the bridge should be kept （）.
A.dirty B.bad C.clean D.disorder
The equipment is very old. It’s not worth（）.A.to repair...
单项选择题The equipment is very old. It’s not worth（）.
A.to repair B.repair C.repaired D.repairing
