We_finished our assignment when the teacher came to th door A had just had B have just had选哪个?
题目
We_finished our assignment when the teacher came to th door A had just had B have just had选哪个?
答案
A.过去完成时
从句里when teacher came用了一般过去
而我们完成作业是在这之前,所以要推一个时态.
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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