题目内容

One of the requirements for a fire is that the material ____ to its burning temperature. (1996.1.CET-6)

A. is heated
B. will be heated
C. be heated
D. would be heated

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------ ____ to live on land one day, where could he stay then? ------On the moon or under the sea, I think.

A. If man is forbidden
B. Should man be forbidden
C. If man forbade
D. When man has forbidden

But for your advice, I ____ into trouble.

A. would get
B. got
C. might have got
D. should get

Thank you for giving me a hand, I ____ in the experiment without your valuable help.

A. had failed
B. will fail
C. would have failed
D. must have failed

If I ____ harder at school, I would be sitting in a comfortable office now.(2002.12.CET-4)

A. worked
B. were to work
C. had worked
D. were working

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