1．(2014届河北衡水中学高三上期二调)You must have read about Mark Twain long ago，________？
A．mustn't you B.haven't you
C．didn't you D．needn't you
解析 考查反意疑问句的用法。在must/can/can't/may/might/should...＋have done 结构中，句子表达的意思都是过去的事情，例如must have done表示过去一定……，这类句子变成反意疑问句是先把句子变成不推测然后再变反意疑问句，本句中由long ago可知是一般过去时，故这个句子如不表推测，应该表达为：You read about Mark Twain long ago，________？故答案应为didn't you，选C项。
答案 C
2．(2014届浙江省绍兴市第一中学高三上学期期中)—Do you know________they got to know each other?
