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
---_____book is this? --- I think it _____ Carla’s. It has his name on it.
#76303
A
Who is, could be
B
Who’s, might belong to
C
Whose, must be
D
Whose, can’t belong to
- Can your uncle speak English? -_______. But he can speak Chinese.
#75024
A
Yes, he can.
B
Yes, he can't.
C
No, he. can't.
D
No, he can.
When I was a child，I ________ watch TV whenever I wanted to. (2013·江西，29)
#62296
A
should
B
could
C
must
D
need