2011年中考英语试题单项选择之连词（4）

　　（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