问题
选择题
You must have waited here for a long time ,___________you?
A．mustn't
B．didn't
C．haven't
D．hadn't
答案
答案：C
本题是反意疑问句的考查。must的反意疑问句不是对must进行反问，因为陈述句部分中有for a long time，所以对have waited进行反问。
搜题请搜索小程序“爱下问搜题”