---who______it be that is knocking at the door? ---It_______be Father, but I’m not sure.
#62245
A
can, must
B
can, may
C
must, can
D
may, must
推荐题目
—Mike’s parents have bought a 2-floor house with a swimming pool.— Oh, it________ be very expensive.
#76640
A
must
B
can
C
need
D
should
----Listen! Is Kitty in the next room? ---- No, it ______ be Kitty. She has gone to Beijing.
#76686
A
may not
B
can’t
C
mustn’t
D
needn’t
-- Mum，can I go on a holiday with my classmates this summer vacation?-- OK．You __________ have a chance if you get along well with your studies．
#62263
A
could
B
shall
C
might
D
must
It was dark when Mary went out. I wonder how she ______ through the black lane by herself.
#63439
A
dared not to go
B
dare going
C
not dare go
D
dared to go
Tom ____ be ill, for I saw him playing basketball an hour ago.
#62553
A
mustn’t
B
needn’t
C
can’t
D
may not