单项选择题
A.to B.for C.with D.up
How many （）are ready fore and aft?A.laddersB.heaving li...
单项选择题How many （）are ready fore and aft?
A.ladders B.heaving lines C.ropes D.thread
We have to （）one meter ahead.A.removeB.shiftC.sailD.go
单项选择题We have to （）one meter ahead.
A.remove B.shift C.sail D.go
（）the head line down to 2 meters above water.A.SendB.Pu...
单项选择题（）the head line down to 2 meters above water.
A.Send B.Put C.Let D.Heave
