A good rest between classes ________ recover brain power to its best and make us perform better in class later.
#62727
A
must
B
can
C
need
D
shall
推荐题目
--- The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job?---____ my students have a try?
#62974
A
Shall
B
Must
C
Will
D
May
—Be quite, the head teacher Mr. Qian is coming. —Don’t worry. It _____ be him. Mr Qian is much fatter.
#76609
A
mustn’t
B
may not
C
needn’t
D
can’t
If you _____the book, you ____ buy it right now, I think.
#78151
A
needn’t, needn’t
B
don’t need, don’t need
C
don’t need, needn’t
D
don’t need, needn’t to
—Amy , I would like your uncle to help me repair the computer. —Sorry, he _____help you today . He won’t come back until tomorrow.
#74730
A
shouldn’t
B
may not
C
can’t
D
mustn’t
(2013·浙江金华二模)A survey has shown that 40% of those killed in traffic accidents ________ if they had been wearing seat belts.
#62415
A
should have been saved
B
must have been saved
C
need have been saved
D
could have been saved