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    科目： 来源：同步题 题型：单选题

    The government is devoting resources to establish public health systems. ________, the physical
    conditions of children have improved greatly.
    [     ]
    A. Therefore  
    B. However
    C. Otherwise  
    D. Meanwhile

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    科目： 来源：同步题 题型：单选题

    —Did you catch the early bus this morning?
    —No. It had left the stop ________ I arrived there.
    [     ]
    A. as soon as  
    B. as the time
    C. by the time  
    D. during the time

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    科目： 来源：同步题 题型：单选题

    Nobody knows exactly how many years it will be ________ the Chinese football team enters the final
    stage of the World Cup.
    [     ]
    A. when  
    B. before
    C. since  
    D. until

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    科目： 来源：同步题 题型：单选题

    I study hard ________ I may not fail in the examinations.
    [     ]
    A．so as to  
    B．in order to
    C．in order  
    D．so that

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    科目： 来源：同步题 题型：单选题

    -Did the policeman let you in?
    -No, ________ I told him who I was.
    [     ]
    A．if  
    B．as if
    C．as though  
    D．even though

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    科目： 来源：内蒙古自治区期中题 题型：单选题

    The world is full of wonders, _____ we open our eyes to see them ?
    [      ]
    A.  if only      
    B.  as if    
    C.  even if      
    D.  only if

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    科目： 来源：甘肃省模拟题 题型：单选题

    Provide your doctor with a detailed medical history ______ he can give you the proper treatment.
    [     ]
    A. even if    
    B. in case        
    C. so that    
    D. as though

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    科目： 来源：甘肃省模拟题 题型：单选题

    Furniture and flooring usually come to mind when we think of ways to use bamboo. Not many of us,
    _____, think of bamboo clothing.
    A. therefore        
    B. thus          
    C. though        
    D. meanwhile

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    科目： 来源：同步题 题型：单选题

    It is _____ English is being widely used at present _____ we learn it hard.      
    [     ]
    A. because; why                  
    B. because; that      
    C. since; why                      
    D. since; that

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    科目： 来源：河北省模拟题 题型：单选题

            I'm willing to help , I do not have much time available.
    [      ]
    A. Because
    B. While
    C. When
    D. Since

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