题目内容
【题目】Wendy often helped her mother ________housework when she was at home.
A. did B. does C. doing D. do
【答案】D
【解析】
试题分析：句意：Wendy在家时经常帮助她母亲做家务。help sb do sth“帮助某人做某事”，故此处用动词do，故选D。
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题目内容
【题目】Wendy often helped her mother ________housework when she was at home.
A. did B. does C. doing D. do
【答案】D
【解析】
试题分析：句意：Wendy在家时经常帮助她母亲做家务。help sb do sth“帮助某人做某事”，故此处用动词do，故选D。