—The old man is ill. He ________ to the hospital at once.  --Don’t worry. A doctor _________to come already.
#39195
A
must be sent , has asked
B
must send, have asked
C
must be sent, has been asked
D
must send, have been asked
推荐题目
The river is _______________.
#40970
A
fifty meter long
B
fifty-meter-long
C
fifty meters long
D
fifty-meters-long
We should not eat ________junk food. 
#43708
A
too many
B
too much
C
many too
D
much too