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35.Clearly,in a system     every decision is made on the basis of tradition alone, it may be difficult to achieve progress.

     A.that           B.when          C.where          D.which

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34.It’s reported that in the past 50 years around 80 percent of Beijing’s courtyard houses 

     A.had wiped out                                       B.have wiped out

     C.had been wiped out                  D.have been wiped out

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33.If I    you would drop in,I would have stayed home。waiting for you.

A.have known                        B.knew  

C.would know                        D.had known

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32.一When will you be back, Peter?

   -       a couple of days.  

     A.On             B.In              C.For             D.By

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31.All books      to the library more than three days late will be subject to a fine.

     A.return          B.returning        C.to return         D.returned

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30.When he was only thirty years old,he had already experienced    most people only experience when they are much older.

     A.what           B.which           C.who            D.when

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29.    in the sport‘s world,a sportsman needs to train constantly to keep himself in best condition.

   A.Survive         B.Surviving        C.To survive       D.Survived

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28.Listen, Mike.She     have done it.She's been with me at the shop all day.

     A.couldn’t       B.shouldn’t        C.needn’t        D.Wouldn’t

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27. -Do you want to go to the cinema tonight?

-Sorry, I’m so tired, I       an early night.

     A.have          B.am having        C.have had        D.had

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