Many questions have been answered by John. He must have previewed the lessons last night, ____ he?
#87702
A
needn’t
B
hasn’t
C
didn’t
D
mustn’t
推荐题目
You are late. If you ____ a few minutes earlier, you ____ him.
#86905
A
came; would meet
B
had come; would have met
C
come; will meet
D
had come; would met
Aunt Mary is crazy about shopping. She must be snapping up the bargains in the department store during such a sale, ______?
#87778
A
mustn’t she?
B
isn’t she
C
needn’t she
D
doesn’t she
I really don’t know how to thank you , but for your help, I ______ my lost necklace．
#87790
A
couldn’t have found
B
mustn’t have found
C
couldn’t find
D
wouldn’t find
(2011·全国卷Ⅰ)They ________have arrived at lunchtime but their flight was delayed.
#86528
A
will
B
can
C
must
D
should