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what had you done by the time were three years old
题目详情
what had you done by the time were three years old
▼优质解答
答案和解析
by the time 到.时间为止.
by the time you were three years old 到你三岁时为止.
在这里可以理解为 by the time 引导时间状语从句,但你在从句里面把主语漏打了.
What had you done 你已经做了什么?
这个句子用了过去完成时.by the time 如果指的是过去某个时间,则主句多用过去完成时.
全句中文意思:到你三岁时为止,你已经做了什么?
by the time you were three years old 到你三岁时为止.
在这里可以理解为 by the time 引导时间状语从句,但你在从句里面把主语漏打了.
What had you done 你已经做了什么?
这个句子用了过去完成时.by the time 如果指的是过去某个时间,则主句多用过去完成时.
全句中文意思:到你三岁时为止,你已经做了什么?
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