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（2010黑龙江省鸡西市，29，1）( )Usually, we dont know how important something is ______ we lose it. A. or B. until C. as soon as （2010北京市，28，1）-Would you like to go to the concert with me? -Id love to, ______ Im afraid I have no time. A. so B. or C. and D. but （2010广西省定西市，15，1）( )She had a stomachache she ate something bad. A. so B. because C. or D. although （2010广西南宁28. 1）He has a lot of money ,________he isnt happy. A.and B.but C.so D.or （2010天津市，41，1）We wont start the meeting ______our teacher arrives. A.though B.until C.while D.or （2010青海省，宁夏，28，1）（ ） Bob is young, _______ he knows a lot. A. because B. so C. but D. unless 答案：BDBBBC | 
