题目内容


. ---The train hasn’t come yet. It is half an hour late.
--- Yes. It __________ here at 2:02 as scheduled.
A．must have beenB．should beC．should have beenD．must be
C
略
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So far no life has been found outside the earth, but while some scientists are actively searching for living things in outer space, others firmly believe there ____ .
A．mustn’t beB．may not beC．can’t beD．won’t be

—You         have set aside more time to play with our kids.
—I wish I ______, but you know how busy I was.
A．should, wouldB．could, didC．might, shouldD．should, had
we___________last night,but we went to the concert instead.
A．must have studiedB．might studyC．should have studiedD．would study

You were stupid to climb up that big tree. You ______ yourself.
A．must have killedB．can have killed
C．should have killedD．might have killed

Only when ____hard____make your dream come true. 
A．do you work, you canB．you work ,you can
C．do you work , can youD．you work, canyou

--- What has happened to Alice ?
--- I don’t know. She__________her job.
A．can have lostB．may have lostC．should have lostD．need have lost

We ______ last night, but we went to the concert instead.
A．must have studiedB．might study
C．should have studiedD．would study

The boss has given everyone a special holiday, so we _____ go to work tomorrow.
A．can’tB．mustn’tC．needn’tD．shouldn’t

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