She is too old to walk,______ _______?
题目
She is too old to walk,______ _______?
答案
1 She is too old to walk,___isn't___ ____she___?==2 She is so old that she can't walk,isn't she?
1 反意疑问句中,前面是肯定 后面用否定 2 反意疑问句在状语从句中,由主句决定.
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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