--- This must be a footprint of a tiger. --- It ____ be. A tiger’s should be much larger and deeper than this.
#62711
A
mustn’t
B
won’t
C
shan’t
D
can’t
推荐题目
—Listen ! Helen is singing in the next room.—It _______ be Helen. She has gone to Beijing.
#74851
A
can’t
B
mustn’t
C
may
D
should
Mike ________at 8:30 for the meeting, but he didn’t turn up.
#63063
A
should arrive
B
must arrive
C
must have arrived
D
should have arrived
---Can people drive after drinking a glass of beer?---No. According to the law they _________.
#74316
A
mustn’t
B
can’t
C
needn’t
D
shouldn’t
Few weight-loss pills can help to keep people slim, _______?
#74637
A
do they
B
dodt they
C
can't they
D
can they
-----Could I have a look at your i-phone5s, dad?------Oh, dear, if you_______.
#62224
A
can
B
must
C
should
D
need