—Whose book is this? —It _____ be Mary’s. Mo Yan is her favorite author. —No, it ____ be hers, she never brings novels to school.
#75008
A
may; mustn’t
B
can; can’t
C
must; can’t
D
must; mustn’t
推荐题目
—Why don’t you wear your jogging shorts, mum?—Well, my legs are too skinny, if you ______ know.
#62955
A
must
B
can
C
may
D
need
People ______always be careful with fire， or it can be dangerous.
#76425
A
can
B
needn’t
C
must
D
shouldn’t
—— We expected you yesterday.—— I'm sorry, I______you to say that I couldn't be here until today.
#63196
A
should have called
B
must have called
C
could call
D
would call
---Mum, could I go shopping with you? --- Yes,________ . But you have to finish your homework first.
#74498
A
you can
B
you could
C
you can’t
D
you couldn’t
When Harry was at college, he ________ go to the reading room after supper every day.
#62317
A
should
B
might
C
would
D
could