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    科目： 来源：不详 题型：单选题


    No bread eaten by man is so sweet as ________ earned by his own labor.
    A．oneB．thoseC．itD．that

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    科目： 来源：不详 题型：单选题


    Do you remember a certain occasion ________ you were in trouble and at that moment I gave you a hand.
    A．whenB．whichC．whyD．where

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    科目： 来源：不详 题型：单选题


    It was not until all the milu deer ________ that we realized we should build a natural park to protect them.
    A．died offB．died away C．died out D．died down

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    科目： 来源：不详 题型：单选题


    .The other day I was showing the boys the weekly chemistry experiment when, ________ I knew it, the mixture was bubbling over everywhere.
    A．ifB．beforeC．thoughD．unless

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    科目： 来源：不详 题型：单选题


    Since the Obama administration took office, the China—US relations ________ positive development thanks to joint efforts of both sides, President Hu said at the Nuclear Security  Summit in Washington, April,12,2010.
    A．witnessedB．were witnessedC．had witnessedD．have witnessed

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    科目： 来源：不详 题型：单选题


    ----- Can you use chopsticks, John?
    ----- ________ . I once stayed in China for two years.
    A．No problemB．It all depends
    C．I’m sorry, but yesD．You can forget it

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    科目： 来源：不详 题型：单选题


    ---Excuse me, sir, is this seat taken?
    ---_______.
    A．Sure, you may take itB．Certainly. Help yourself
    C．No. I don’t think soD．No. I don’t hope so

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    科目： 来源：不详 题型：单选题


    He had _____ me to come to the party, but he didn’t show up.
    A．allowedB．promisedC．wantedD．advised

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    科目： 来源：不详 题型：单选题


    My neighbor’s daughter changed so much that I didn’t ____ her at first sight.
    A．realizeB．recognizeC．researchD．reserve

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    科目： 来源：不详 题型：单选题


    I have to go to work by taxi because my car ____ at the garage.
    A．will be repairedB．is repairedC．is being repairedD．has been repaired

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