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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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25.Let's go a little faster,     we’ll never get there on time.

     A.yet             B.or             C.so              D.and26.With age,the mineral content of human bones decreases,     them more fragile.

     A.make           B.to make         C.made           D.making

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24.一How long have you been here?

   -Only about five minutes.Henry and Simon    here with me.

     A.walk            B.have walked      C.walked          D.had walked

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23.-Was    problem solved?

   -We were trying to think of     way out,but it was difficult to find one.

     A.a;a           B.a:the          C.the;a          D.the;the

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22.Take the spare batteries with you      you need them.

   A.so that          B.even if          C.as long as       D.in case

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