She told me yesterday that she had lived in the south since the New Year
题目
She told me yesterday that she had lived in the south since the New Year
请问这个句子用了什么时态?
答案
一般过去时~
但里面包含了一个过去完成时
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
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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