The sailors spend most of their time in （）.

单项选择题Port-hand buoys are painted （） in color.

A.green
B.red
C.yello
D.white

单项选择题Have you （）paint?

A.any
B.some
C.lot
D.a lot

单项选择题（）is used in bilges and peak tanks.

A.Bitumen
B.Cement wash
C.Paint
D.Varnish

单项选择题Why are （）easy to be rusted?

A.ropes
B.gloves
C.ships
D.drafts

单项选择题Everything on the bridge should be kept （）.

A.dirty
B.bad
C.clean
D.disorder