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    科目： 来源：不详 题型：单选题

    He hasn’t got any hobbies---_______ you call watching TV a hobby.
    A．IfB．UnlessC．WhenD．Since

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    科目： 来源：不详 题型：单选题

    Scientists say it may be one year or so ________ it is possible to test the new medicine on human patients.
    A．whenB．afterC．beforeD．since

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    科目： 来源：不详 题型：单选题

    He looks so weak and pale ________ suffering from a serious illness.
    A．as ifB．as long asC．now thatD．even if

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    科目： 来源：不详 题型：单选题

    There is no doubt _________ the world climate has been changing in recent years.
    A．thatB．whatC．ifD．whether

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    科目： 来源：不详 题型：单选题

            children believe they can succeed, they will never become totally independent．
    A．IfB．ThoughC．UnlessD．When

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    科目： 来源：不详 题型：单选题

    John’s success has nothing to do with good luck. It is years of hard work _______has made him a great scientist today.
    A．thatB．whenC．whichD．why

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    科目： 来源：不详 题型：单选题

    —Did your father phone you shortly after the accident?
    —No, it was a fortnight ________ he gave me a phone call.
    A．sinceB．whenC．whileD．before

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    科目： 来源：不详 题型：单选题

    Remember when you learned to water ski, David?  _________ you skied more, you got better and better. It’s the same with language study. 
    A．althoughB．whileC．asD． unless

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    科目： 来源：不详 题型：单选题

    Bungee jumping is an exciting activity, very popular among young adults, ___________ courage matters more than strength. 
    A．whoseB．thatC．of whichD．where

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    科目： 来源：不详 题型：单选题

    Staff are allowed to take a ten-minute break every two hours to relax, use the bathroom or do ___________ else is necessary.  
    A．somethingB．anythingC．whateverD．what

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