单选题
You must have seen the film last night, ______?
A、
didn't you
B、
mustn't you
C、
needn't you
D、
do you
【正确答案】
A
【答案解析】
[解析] 当陈述句部分的must表示“一定”、“想必”等推测意义时,疑问尾句不用mustn't,而是根据陈述句部分的谓语动词来确定。如:He must have waited here for a long time,hasn't he?中的陈述句相当于I'm sure he has waited...,所以反意疑问部分用hasn't he。本题正确答案为A。
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