----Look,Mr.Hu is on the other side of the street. ----It____ be him.He has gone to Lanzhou. 
#87934
A
mustn’t
B
can’t
C
wouldn’t
D
couldn’t
推荐题目
(2013·山西高三诊断)Honey, you ________ alcohol for they have stopped drinking.
#86569
A
may not have bought
B
mustn't have bought
C
can't have bought
D
needn't have bought
 “Did Jim come?” “I don’t know. He _______ while I was out.”
#89540
A
might have come
B
might come
C
mush have come
D
should have come
If you were to do it,the result______different. 
#87724
A
will be
B
would be
C
should be
D
would have been