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【题目】College students ___ us a lot, they are_____.

A. helps; helpB. help; helpful

C. helpful; helpful D . helps; helpful

【答案】B

【解析】

句意:大学生帮助了我们很多,他们很乐于助人。考查同源词用法辨析。分析题干College students ___ us a lot, they are_____结构可知,第一个空是谓语动词,主语是可数名词复数,谓语动词用复数help;第二个空位于系动词后是表语,用形容词,是helpful。故选B

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