The floor is dirty and it requires .A.being cleanedB.cleanC.to cleanD.cleaning
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The floor is dirty and it requires _________.
| A.being cleaned | B.clean | C.to clean | D.cleaning |
试题答案
D
解析

The floor is dirty and it requires _________.
| A.being cleaned | B.clean | C.to clean | D.cleaning |
D
解析