i haven't written [not writte]for such along time 这里为什么用过去完成时 帮我分析I have been very busy with study这句也是the doctor told[tell]me i have to balance my work.这句又用过去时 为什么呢?帮我区分一下过去
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/10 05:07:28
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