Mountain climbing _______ be tiring and many people feel sick as the atmosphere gets thinner.
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A
need
B
can
C
must
D
would
推荐题目
He _______ busy yesterday, or he _______ you with your experiment.
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A
was; had helped
B
was; would have helped
C
had been; would have helped
D
were; would have helped
---- The woman biologist stayed in Africa studying wild animals for 13 years before she returned.---- Oh, dear! She _______ a lot of difficulties!
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A
may go through
B
might go through
C
ought to have gone through
D
must have gone through
Close the door of fear behind you, and you ____ the door of faith open before you.
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A
saw
B
have seen
C
will see
D
are seeing
They ______ so tired if they ______ for a whole day.
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A
wouldn’t feel, didn’t walk
B
wouldn’t feel, weren’t walking
C
wouldn’t be feeling, weren’t walking
D
wouldn’t be feeling, hadn’t been walking
——Has Jane arrived yet? ——No, she_______ an hour ago.
#88347
A
was supposed to come
B
must have come
C
should come
D
ought to have come