what were you doing when mom came in ? my sister asked me ,改同义句
问题描述：
what were you doing when mom came in ? my sister asked me ,改同义句
答
正确答案为：
My sister asked me what I was doing when mom came in.
我姐姐问我当妈妈进来时我在做什么?
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另外千万别忘记采纳哟!