问题

You may refuse my invitation , but you must explain why . — Oh, I must , _____ ?
A:did I
B:didn’t I
C:must I
D:mustn’t I
B:didn’t I
C:must I
D:mustn’t I
正确答案是:
同类题型
I hope you my party next weekend.–OK,I .
Could you help me to find out the reason ____ the brake doesn’t work?
mber of people invited ______ fifty, but a number of them______absent for different reasons
Have you — No. I had the wrong number.
_________your watch five minutes ahead is an effectiveway to avoid being late.