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Tom sat down at his desk and began to do his homework.

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/10/04 04:48:36
Tom sat down at his desk and began to do his homework.
Tom sat down at his desk and his homeork was begun to do .
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再问: begun???
再答: 对呀,begin 的过去分词是begun,被动语态的结构是be+动词的过去分词。