—The research on the new flu virus vaccine is challenging and demanding. Who do you think can do the job? —______ my students have a try?
#62920
A
May
B
Must
C
Will
D
Shall
推荐题目
Tom ____his homework yesterday, because he was in hospital all day.
#63327
A
can’t finish
B
couldn’t finish
C
couldn’t have finished
D
mustn’t finish
No student______ go out of school for snacks during the break without the teacher’s permission.
#62555
A
shall
B
must
C
will
D
may
--- I don’t mind telling you what I know.--- You_________. I’m not asking you for it.
#62796
A
mustn’t
B
may not
C
can’t
D
needn’t