before 是在..之前,所以主句用的是过去完成时,从句用一般过去时
可翻译为:“数周过去后我才意识到这幅画丢了.”
when 是当...时 应用相同时态吧
状语从句 Several weeks had gone by _____ I realized the painting was missing.
状语从句 Several weeks had gone by _____ I realized the painting was missing.
中间的空为什么用before 而不用when?
中间的空为什么用before 而不用when?
英语人气:536 ℃时间:2020-03-24 07:35:11
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