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單項選擇題

The （）plates should be scraped and brushed to bare metal.

A.rusty
B.tidy
C.dirty
D.cleaned

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單項選擇題

The rusty plates should be wiped clean before paint is （）.

A.applied
B.supplied
C.placed
D.watered

單項選擇題

Before an area can be repainted, preparation is （）.

A.good
B.useless
C.necessary
D.bad