单项选择题
A.removed B.remained C.renewed D.reopened
Ships often become （）(脏). So cleaning is a frequent job...
单项选择题Ships often become （）(脏). So cleaning is a frequent job on board.
A.clean B.claw C.dirty D.deck
It is necessary for her to （）(执行) the general day-to-da...
单项选择题It is necessary for her to （）(执行) the general day-to-day repair on board.
A. work out B. look out C. wipe out D. carry out
Before entering or leaving a harbour, the ship should b...
单项选择题Before entering or leaving a harbour, the ship should be given a （）(彻底) cleaning.
A.throw B.through C.thorough D.though
