-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
--I can’t understand why our boss is late. --He _____the early bus.
#88079
A
could miss
B
may have missed
C
can have missed
D
might miss
The report urged that all the children _______ to swim.
#87326
A
are taught
B
be taught
C
to be taught
D
being taught
 If I ____ you, I would join the army.
#86757
A
am
B
was
C
were
D
would be