She knew they were having the same troubles that she had experience.中have为什么用having
题目
She knew they were having the same troubles that she had experience.中have为什么用having
答案
She knew they were having the same troubles that she had experienced.中have为什么用havingthey were having the same troubles 是一个宾语从句.宾语从句的谓语动词用【过去进行时】,意思是【她那时知道】他们那...
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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