英语 变被动语态
题目
英语 变被动语态
he is telling his mother what happened the day before.
主动语态变被动语态
答案
His mother is being told by him what happened the day before.
或What happened the day before is being told to his mother by him.
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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