The professor ________at 8 o’clock，but he has not shown up yet，which worries all of us.
#86762
A
was supposed to arrive
B
must have arrived
C
might have arrived
D
was supposed arriving
推荐题目
— We did not see him at the lecture yesterday． — You _______ him, since I went to an international conference with him．
#87885
A
mustn’t have seen
B
can’t have seen
C
couldn’t see
D
needn’t have seen
The demand that the law on gun ownership _____ be changed ___ is very strong.
#86781
A
changes
B
will be changed
C
be changed
D
be changing
What a pity! Considering his ability and experience, he ___________ it better.
#87501
A
need have done
B
must have done
C
can have done
D
might have done
Aunt Mary is crazy about shopping. She must be snapping up the bargains in the department store during such a sale, ______?
#87778
A
mustn’t she?
B
isn’t she
C
needn’t she
D
doesn’t she
“Do you think he is lazy?” “I _________ so once, but I don’t now.”
#89120
A
may have thought
B
can have thought
C
may think
D
might think