—Jim, ________ you answer the last question? -- Sorry, I can’t. It’s too hard.
#78156
A
need
B
may
C
must
D
can
推荐题目
-----Must we clean the classroom now?------No ,you _______.
#75342
A
must
B
needn’t
C
aren’t
D
mustn’t
How kind you are! You always do what you can_________me.
#77564
A
help
B
helping
C
to help
D
helps
 ---_______I come back before five o’clock? ---No, you ________. But you________ be back later than seven o’clock
#74703
A
Need; must; mustn’t
B
May; mustn’t; can’t
C
Can; can’t; can’t
D
Must; needn’t; can’