The doctors are doing all that they _____, but the old man is still not breathing properly.
#62988
A
shall
B
need
C
may
D
can
推荐题目
-- Could I invite my friends to my birthday party? -- Sorry, you _________.
#75551
A
can
B
can’t
C
could
D
couldn’t
China’s word，tuhao，which caught the attention of the dictionary’s editing team，__________ be in next year’s Oxford English Dictionary．
#62447
A
must
B
need
C
dare
D
may
The tall boy ______ be Mike. He has gone to New York to study.
#75029
A
mustn’t
B
couldn’t
C
can’t
D
might
一 I turn on the TV for you，Grandpa?一Yes，thanks a lot，my dear. You’re so considerate.
#63199
A
May
B
Shall
C
Will
D
Need
- Must I clean the Lable now? - No, you ____. You may do it later.
#76561
A
can’t
B
needn’t
C
mustn’t
D
shouldn’t