【題目】In the past, ____didn’t make much of a difference to your success____ you had a good family background.

A. that; if B. it; whether C. that; whether D. it; if

【答案】B

【解析】

考查形式主語和主語從句。句意:在過去,是否有良好的家庭背景對你的成功并沒有太大的影響。此處是it作形式主語,后面的主語從句是真正的主語,且if是否講時不能引導主語從句,故答案為B。

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