题目内容
My sister met him at the Grand Theater yesterday afternoon, so he ____ your lecture.
A.couldn't have attended B.needn't have attended
C.mustn't have attended D.shouldn't have attended
A
解析:
该题前句叙说一个客观事实,后句对前句进行补充说明,分析选项可知C是错误的; 而B、D两项不符合题意。故本题选A
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