The next generation of telescopes will reveal（显露；揭示）new parts of our universe that will seem surprising, just as the moon's craters（坑）______ when observed 400 years ago．

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• 1一I still cannot figure out why he missed his flight． 一He ______ an accident on the way to the airport．

  A.could have had

  B.should have had

  C.would have had

  D.must have had

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• 2He recommended that she ______ and see the film.

  A.will go

  B.goes

  C.go

  D.would go

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• 3—How _____ you have been late then in such a small town? —Lots of turns in the streets, and the buildings look all the same.

  A.can

  B.could

  C.may

  D.must

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• 4— Mary, let's go to the lecture by Hawking, which is said to be very interesting. — I'd like to, but I ________ finish the report first.

  A.can

  B.may

  C.must

  D.shall

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• 5Ms Li requested that we _____ spend half an hour reading English aloud every morning.

  A.would

  B.should

  C.must

  D.need

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• 6The little girl _____ go out at night and often imagined _____ a monster following her

  A.dared not；there being

  B.dare not；there being

  C.did not dare；there to be

  D.didn't dare to；there be

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• 7------I don't know why he has made such a silly mistake in the exam. ------ He ______ it before he handed in the paper.

  A.may have checked

  B.might check

  C.must have checked

  D.should have checked

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• 8---The book is borrowed from the library. You _______ your children touch it with their dirty hands. 　---Sorry.　    

  A.should have let　

  B.needn't have let　

  C.mustn't have let

  D.ought not to have let

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• 9The captain urged that the mission ______ before dark.

  A.must be finished

  B.be finished

  C.ought to be finished

  D.was finished

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• 10We have been excavating layers of ash almost six metres thick, which suggests that they _______the fire burning all winter.

  A.should keep

  B.might have kept

  C.should have kept

  D.might keep

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