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31.The local government is trying all out to find out who is    the forest fire.

    A.to blame for starting               B.to blame to start

    C.to be blamed for starting            D.to be blamed to start

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30.---How can we reduce CO2 in our home?

  ---It’s easy.    off your TV or computers when you’re not using them, and you’ll greatly reduce it.

    A.Turn          B.To turn         C.Turning        D.Turned

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29.---Have you been     ?

  ---Yeah.As a matter of fact, I’ve been going to the gym for half a year now.

    A.carrying out     B.turning out      C.making out      D.working out

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28.Mr Li has some trouble sleeping, so dinking a glass of milk before going to bed every night is his common    

    A.practice        B.knowledge      C.experience      D.duty

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27.The moment     John will never forget is    Mr.Smith gave him a lot of valuable advice on how to improve his writing.

    A.that; that       B.that; when      C.when; that      D.when; when

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26.---Does Rita feel better today?

  ---Her condition has     improved, but it will be some time before she returns to school.

    A.sooner or later                   B.more or less

    C.now and then                    D.once in a while

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25.---When did you move to Sanya?

  ---In 2008.But I     in Tibet for 8 years.

    A.has worked                     B.has been worked

    C.have been working                D.worked

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24.Mother’s love is true love! She’s never stopped loving you     you become or you do.

    A.whichever      B.however        C.whatever       D.whoever

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23.I’m afraid we’ll have to work extra hours, for there are still some problems   

    A.remaining to settle                 B.remaining to be settled

    C.remained to talk about              D.to remain to discuss

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22.I have been living in Haikou for 10 years, but seldom     so lonely as now.

    A.have I felt       B.I have felt       C.had I felt       D.I had felt

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