题目内容
12．I was doing my homework _______ my father was reading newspapers．（ ）| A． | how | B． | while | C． | if |
分析 我在做作业，同时我爸爸在读报纸．
解答 答案：B；
根据设空处前后的句子都用了过去进行时，可以推断本句的句意是"我在做作业，同时我爸爸在读报纸．"，表示主句的动作和从句的动作同时发生且持续进行，用while引导时间状语从句，while"当…时"，通常与延续性动词连用，表示两个动作同步发生，故选B．
点评 本题主要考查连词的用法，做此类题目一定要弄清句意，明白上下文之间的关系，比较和分析选项中连词的不同含义及其用法才能更好地判断出所要用的连词．
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