—Look! The man at the gate _______be our headmaster. He is always standing there every morning.—No, it_______ be him. He is holding a meeting in the office now.
#74208
A
must; can’t
B
must; mustn’t
C
can’t; can’t
D
can’t; mustn’t
推荐题目
(2012·全国卷Ⅱ)I'm going to Europe on vacation together with John if I ________ find the money.
#62395
A
can
B
might
C
would
D
need
Mary ______ my letter; otherwise she would have replied before now.
#63420
A
has received
B
ought to have received
C
couldn’t have received
D
shouldn’t have received
------Is Peter here yet? ------Not yet, but he ___________ be here soon. He is usually on time.
#74734
A
would
B
need
C
must
D
should
Whale beachings（搁浅）_______ be caused by factors such as illness, or disorientation（迷失方向）caused by extra noise in the oceans, ______ shipping or oil and gas drilling.
#62978
A
might; from
B
will; by
C
should; in
D
shall; on