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TheroomrequiredandIrequiredtwomorestudentshelpthem.A.cleaning;cleanB.cleaning;cleanedC.tobecleaned;

题目详情

The room required             and I required two more students           help them.

 A cleaning; clean                                          B cleaning; cleaned 

C to be cleaned; cleaned                                 D to be cleaned; to clean

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答案和解析

D