The haze or smog was so serious that the winter running _________.Some students complained as they ran
#62272
A
could have cancelled
B
should have cancelled
C
must have been cancelled
D
ought to have been cancelled
推荐题目
--- Whose hair band is this ? ________ it be Kate’s ? --- I’m not sure . It ________ be hers.
#75310
A
May ; must
B
Must ; may
C
Can ; must
D
Can ; may
---Listen! Someone is knocking at the door. Who _____it be?---It _____be Tom. He phoned to visit me this evening.
#76797
A
may; may
B
may; shouldn’t
C
must; can
D
can; may
—________ we finish the work before class, Jack?—No, we_________ . We can do it after class.
#74109
A
Must, don’t have to
B
Must, must
C
Can, mustn’t
D
Can, needn’t
I’m impressed with his determination. When he had a problem to solve, he _____ work at it until he found an answer.
#63610
A
would
B
might
C
must
D
should