Mountain climbing _______ be tiring and many people feel sick as the atmosphere gets thinner.
#87119
A
need
B
can
C
must
D
would
推荐题目
—Did Jim come?—I don’t know. He _______ while I was out.
#89860
A
might have come
B
might come
C
mush have come
D
should have come
----Carol Walker didn’t turn up last time ,did she ? ----No .She _______.We had changed our plan .
#89827
A
shouldn’t have come
B
needn’t have to come
C
didn’t need to come
D
needn’t have come
Jack ________ have fought with the policeman. —Yes. If one ________ ask for trouble, it can’t be helped.
#86400
A
would; will
B
must; may
C
should; must
D
need; dare
Doctors say that exercise is important for health,but it__________be regular exercise .
#88242
A
can
B
will
C
must
D
may
With all his money, he _________ worry about a little thing like 5 cents!
#86952
A
can
B
must
C
may
D
should