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Studying in groups is necessary you want to do well in school. A. if B. until C.

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Studying in groups is necessary you want to do well in school. A. if B. until C.

 Studying in groups is necessary_____ you want todo well in school.

A.if            B.until        C.unless        D. though

 

试题答案

【答案】

A

【解析】

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