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I was trying my best to finish my work when my sister was whtching TV 这句话有语法错误吗?

分类: 作业答案 • 2021-12-28 14:32:49

问题描述：

I was trying my best to finish my work when my sister was whtching TV 这句话有语法错误吗?

答

这里主要强调两件事情的同时发生,用while 比when更好.