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1The river smells terrible. People_______ dirty things into it .

A. must stop to throw

B. must stop from throwing

C. must be stopped to throw

D. must be stopped from throwing

 

【答案】

D

【解析】此題考察的含有情態(tài)動詞的被動語態(tài),stop from doing sth 表示阻止做某事。

 

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