The flu is believed _____ by viruses that like to reproduce in the cells inside the human nose and throat.     

试卷相关题目

• 1Energy drinks are not allowed________in Australia but are brought in from New Zealand.

  A.to make

  B.to be made

  C.to have been made

  D.to be making

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• 2He hurried to the booking office only________that all the tickets had been sold out.

  A.to tell

  B.to be told

  C.telling

  D.told

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• 3What a victory ________ those rich and proud women!

  A.to envy at

  B.to be envied at

  C.to envy by

  D.to be envied by

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• 4Do let your mother know all the truth. She appears _____ everything.

  A.to tell

  B.to be told

  C.to be telling

  D.to have been told

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• 5___ crying sadly, he raised his head and let tears stream down his face on purpose.

  A.To be seen

  B.Seeing

  C.To see

  D.Having seen

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• 6We've had a good start, but next, more work needs ________ to achieve the final success.   

  A.being done

  B.do

  C.to be done

  D.to do

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• 7When the earthquake, a destructive natural disaster, happened, ninety-nine coal miners were trappedin the coal mine _____the ruins, waiting _____.

  A.in; to be rescued

  B.under; for being rescued

  C.in; to rescue

  D.under; to be rescued

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• 8She seemed _____ the book before, but she said she had never.

  A.to read

  B.to have read

  C.to be reading

  D.reading

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• 9He is said _____ a new machine recently, but I don't know when he will make it.

  A.to design

  B.to be designed

  C.to have designed

  D.to have been designing

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• 10Energy drinks are not allowed ______ in Australia but are brought in from New Zealand.

  A.to make

  B.to be made

  C.to have been made

  D.to be making

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