If ________, the dirty air will lead you to fall ill.

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• 1--- He has never learned French． ---- __________．

  A.So I did

  B.So have I

  C.Nor I have

  D.The same with me．

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• 2After that we never saw her again, nor_________ from her.

  A.had we heard

  B.we heard

  C.did we hear

  D.we have heard

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• 3－ What a great success the exhibition was last night ! －_______ , especially it ______ those who have a preference for the beauty of nature .

  A.So it did ; appeals to

  B.So did it , interested

  C.So was it ; attracted

  D.So it was ; appealed to

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• 4________ , where we can stay for a week.   

  A.Next is another hotel to it

  B.Next to it another hotel is

  C.Next to it is another hotel

  D.It next to another hotel is

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• 5Please correct the mistakes ________.

  A.if there are

  B.there are mistakes

  C.if any

  D.if any mistakes

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• 6Only by imagining and creating ________ the problem．

  A.can solve

  B.you can solve

  C.solve

  D.can you solve

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• 7_____ that air conditioners cause so much pollution, I would never have bought one.

  A.Had I known

  B.I had known

  C.Were I to know

  D.Did I know

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• 8________ the help of her teacher, Mary ________ in the past few months.

  A.With; has made progress

  B.Under; has made a progress

  C.With; had made progress

  D.Under; had made a progress

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• 9The door opened and in ______ .

  A.came she

  B.did she come

  C.did Miss Gao come

  D.she came

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• 10Only when I left my parents for Italy ______ how much I loved them.

  A.I realized

  B.I had realized

  C.had I realized

  D.did I realize

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