25. – Tom, it's too late. Our son ________ be back.– Don't be anxious. I dare say he ________ have some extra work to do.
#88895
A
can; must
B
will; might
C
should; must
D
must; may
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—Pity you missed the lecture on nuclear pollution. —I _____it, but I was busy preparing for a job interview.
#87101
A
attended
B
had attended
C
would attend
D
would have attended
Swimming alone ____ be ____ dangerous. Do be careful.
#89464
A
need, highly
B
may, high
C
can; highly
D
can; high
It is required in our school that lights in students’ rooms ______ off by 11o’clock.
#87254
A
be switched
B
would switch
C
should switch
D
must be switched
—"I stayed at a hotel while in New York." —"Oh, did you? You _____ with Barbara."
#87987
A
could have stayed
B
could stay
C
would stay
D
must have stayed