-Is Jack on duty today?-It ____ be him. It’s his turn tomorrow.
#87485
A
mustn’t
B
won’t
C
can’t
D
needn’t
推荐题目
--- Mike, it’s a pity you didn’t come to last night’s concert. It was really great! --- Really? If I ________ so busy, I would have gone with you.
#87986
A
hadn’t been
B
weren’t
C
shouldn’t be
D
wouldn’t be
Great efforts to increase grain production if food shortages are to be avoided.
#88013
A
could be made
B
must be made
C
might be made
D
would be made
Our English teacher recommended that we ________ an English dictionary.
#87222
A
bought
B
must buy
C
buy
D
would buy
----Marx looks nervous.----So __________ you if you had so fierce a competition.
#86797
A
do
B
did
C
will
D
would
—Why didn't you come to Mike’s birthday party yesterday?---Well, I ____, but I forgot it.
#90381
A
should
B
must
C
should have
D
must have