题目内容
改写句子，使句子意思保持不变
She usually helps her mother wash clothes.
She usually helps her mother ________ ________ ________ .
答案：do,some,washing
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题目内容
改写句子，使句子意思保持不变
She usually helps her mother wash clothes.
She usually helps her mother ________ ________ ________ .