Food safety issues, ________ will seriously affect the growth of teenagers and even the nation's future.  

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• 1While staying in Scotland alone, _____.

  A.loneliness was always around me

  B.many interesting places were visited

  C.I was a bit homesick

  D.my friends in China encouraged me a lot

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• 2— Have you heard that Susan has been appointed Director of the Engineering Department?— After working so hard for so many years, ____.

  A.she surely welcomes it

  B.she certainly deserves it

  C.she is welcomed to it

  D.it's good news

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• 3Not having worked out the problem, _____ leave the office.

  A.so he was not allowed to

  B.and he didn't want to

  C.the teacher couldn't make him

  D.he couldn't free himself to

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• 4I want to have a short talk with you.Could you spare a few minutes________?

  A.if necessary

  B.if possible

  C.if so

  D.even if so

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• 5I think I can fix your car tomorrow afternoon.________, you'll have to wait till Friday.

  A.If necessary

  B.If so

  C.If not

  D.If possible

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• 6— I hear that Tom can't afford his schooling this fall. — _______ , let's do something for him.  

  A.If so

  B.When necessary

  C.When possible

  D.If any

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• 7While watching television, ______.

  A.the doorbell rang

  B.the doorbell rings

  C.we heard the doorbell ring

  D.we heard the doorbell rings

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• 8She hurriedly left the room as if__________.

  A.she angry

  B.was angry

  C.it was angry

  D.angry

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• 9Not having worked out the program, ______ leave the office.

  A.so he was forbidden to

  B.and he didn't want to

  C.his little son couldn't make him

  D.he couldn't free himself to

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• 10All we need ________ a small piece of land where we can plant various kinds of fruit trees throughout the growing seasons of the year.

  A.are

  B.was

  C.is

  D.were

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