—Listen! There is a knock on the door. Who _____ it be?—It must be Jack. Just now I sent for him.
#63686
A
shall
B
can
C
must
D
might
推荐题目
I’m sorry, Bill. I _________ the book to you last week, but I was so busy that I forgot to do so.
#63435
A
must have returned
B
could return
C
should have returned
D
might return
—Must I park my car behind the cinema? —No,you ．You park it here
#75604
A
mustn’t, may
B
may not, must
C
don’t have to, may
D
shouldn’t, must
My computer ____start, no matter how hard I try.-lt might have crashed.
#62243
A
won't
B
shouldn't
C
mustn't
D
wouldn't
—I called you at 9 last night，but no one answered.—Sorry，I ________ sleeping.I went to bed very early.
#62284
A
need have been
B
would have been
C
must have been
D
should have been
The public transportation is very convenient in that big city, so there ________ be any difficulty in traveling around.
#62406
A
mustn't
B
wouldn't
C
shouldn't
D
needn't