关于反义疑问:You must have seen her yesterday,___you A mustn't B haven't C didn't D don't 选C

问题描述:

关于反义疑问:You must have seen her yesterday,___you A mustn't B haven't C didn't D don't 选C
但是这个呢You must have seen her ,___you A mustn't B didn't C must be D A&B 答案给的是D 为什么跟上面的那个题答案不一样呢?

第二个答案不对的.
must表示推测不可以用mustn't 来反问.