—Who’s that boy reading in the study ? Is it David?—It __________ be David. I saw him go home just now.
#74950
A
must
B
can’t
C
may
D
shouldn’t
推荐题目
--- May I smoke here? --- If you , choose a seat in the smoking section.
#63523
A
should
B
could
C
must
D
may
(2013·高考北京卷)—You needn’ t take an umbrella.It isn’t going to rain.—Well，I don’t know.It________do.
#62473
A
might
B
need
C
would
D
should
_____ people in the world are sending are receiving e-mails every day.
#77031
A
Million of
B
Many millions of
C
Several millions’
D
Several millions
---Mum, I hurt my leg when I climbed the tree. --- You ___ that tall tree. I’ve told you many times.
#62682
A
mustn’t have climbed
B
shouldn’t have climbed
C
couldn’t climb
D
may not climb
Your teacher ________ very angry at that moment because you talked back to her like that.
#62318
A
should have been
B
must have been
C
must be
D
might have been