—Someone is knocking at the door. Is it Ann?—It _____ be her. She is giving a performance at the theatre now.
#75354
A
may
B
must
C
can’t
D
mustn’t
推荐题目
–– ________ I come back before 6 o’clock?–– No, you _______ . But you ______ be back later than 7 o’clock.
#75632
A
Need; must; must
B
May; mustn’t; can’t
C
Can; can’t; can’t
D
Must; needn’t; can’t
The teacher says we _____read ______ comic books.
#76754
A
mustn’t, much too
B
can’t, much too
C
may not, too many
D
shouldn’t, too many
---I want to know if I can smoke here?---No, you _________. Could you see the sign “NO SMOKING” there?
#75545
A
needn’t
B
couldn’t
C
won’t
D
mustn’t
He ______ it on schedule, but somehow he fell behind.
#62908
A
must have done
B
might finish
C
could have finished
D
could finish