[题目]I should not have laughed if I you were serious.A. thought B. would thinkC. had thought D. have thought 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】I should not have laughed if I ______ you were serious.

A. thought B. would think

C. had thought D. have thought

【答案】C

【解析】

试题分析：句意：如果我当时想到你是认真的，我就不会笑了。由句意知，此句是与过去事实相反的虚拟语气，可知从句结构为had done。故选C。

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