A.rusty B.tidy C.dirty D.cleaned
单项选择题The rusty plates should be wiped clean before paint is （）.
A.applied B.supplied C.placed D.watered
单项选择题Before an area can be repainted, preparation is （）.
A.good B.useless C.necessary D.bad
单项选择题Loose paint and scale are removed with （）.
A. a chipping hammer B. a scraper C. a lining brush D. saw
单项选择题We can remove the heavy rust on the plate with a （）.
A.scraper B.hammer C.chipping hammer D.saw
单项选择题Scrapers are used to （）the rust on the plates.
A.remove B.move C.shift D.water
