—Sorry, sir. I can’t answer this question. ---Well, you are supposed______ this part of history.
#86779
A
reading
B
to be reading
C
to have read
D
having read
推荐题目
It was playing computer games that cost the boy plenty of time that he ______ spent doing his lessons.
#87725
A
might have
B
should
C
ought to have
D
could
—I didn’t see her yesterday.—Of course, you _____, because she had gone to a trip.
#90165
A
can’t
B
may not have
C
can’t have
D
mustn’t have
The washing machine is of excellent quality. If there __________ be any problem within the first three years, we would fix it for free.
#87028
A
could
B
might
C
shall
D
should
I ________ asleep because it took me a long time to realize that the telephone was ringing.
#87573
A
could fall
B
need have fallen
C
must have fallen
D
may fall