题目内容
7.I often help my mother _____ the housework when I finish ____ my homework.( )| A. | doing; doing | B. | to do; to do | C. | to do; do | D. | do; doing |
分析 当我完成作业后我总是帮助我妈妈做家务.
解答 答案:D.
根据I often help my mother _____ the housework when I finish ____ my homework,可知当我完成作业后我总是帮助我妈妈做家务,这里help sb do sth表示帮助某人做某事,后面可以跟动词原形;finish doing sth表示完成某事,后面跟动词的ing形式.故选D.
点评 本题考查固定句式的用法,抓住句中的关键词并联系相关的语法知识可得出正确的答案.平时注意对此类短语或句式用法的总结与归纳.
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