He _______ Shanghai, for I saw him talking with the headmaster a moment ago.
#90144
A
must have gone to
B
can’t have gone to
C
mustn’t have been to
D
can’t have been to
推荐题目
I insisted that a doctor ________ immediately.
#86728
A
has been sent for
B
sends for
C
be sent for
D
will be sent for
I______Professor Jones had taught me this question. 
#89919
A
believe
B
deeply think
C
wish
D
suppose
— He hasn’t finished the work yet.— Well, he _____.
#90435
A
ought
B
ought to
C
ought to have
D
ought to have finished
—You didn’t wait for Mr. Black last night, did you?  —No, but we ____. He didn’t return home at all. 
#89202
A
couldn’t have
B
needn’t have
C
didn’t need to
D
should wait have