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His friends ignored his advice, they knew it to be helpful. A.as if B.since C.ev

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His friends ignored his advice, they knew it to be helpful. A.as if B.since C.ev

His friends ignored his advice, ______ theyknew it to be helpful.

A.as if

B.since

C.even if

D.so that

 

试题答案

【答案】

C

【解析】

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