—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
A left-luggage office is a place where bags ________ be left for a short time, especially at a railway station.
#62936
A
should
B
can
C
must
D
will
--____ you come to my birthday party tomorrow, Robert? --I’m afraid not. I have to study for my exam.
#78338
A
Must
B
Should
C
Can
D
Need
The young trees should ______well as often as possible.
#75249
A
be water
B
watered
C
watering
D
be watered
—Thank you very much for giving me a hand when I was in trouble. —Don’t mention it. I only did what anyone else in my place.
#63418
A
must do
B
might do
C
would have done
D
can have done