【2010湖北 荆州】24. -Why didnt Betty come to school yesterday?
-_________ she was ill.
A．But B．Though C．If D．Because
答案：D
【解析】考查连词。上文用why作回答，下文用because作应答。
【2010黑龙江鸡西】29. Usually, we dont know how important something is ______ we lose it.
A. or B. until C. as soon as
答案：B
【解析】连词用法。由连词until构成：notuntil 直到才这里是直到我们丢失了什么菜知道它的重要。所以选择答案B.
【2010四川广安】38. -What will Lucy do this Sunday?
-She as well as her family ______ go camping by a small lake.
A. am going to B. is going to C. are going to
答案：B
【解析】连词的用法.as well as常用来连接两个并列的成分，作也，还解.它强调的是前一项，后一项只是顺便提及.因此连接并列主语时，谓语动词与前一项一致，因此本题she as well as her family做主语时，谓语要和she一致，故选B.