把下列句子合并成宾语从句
题目
把下列句子合并成宾语从句
Did he watch TV just now?I ask.
Does he live in London My mother wanted to know.
How often are you away from school?The teacher asked me.
答案
I ask if he watched TV just now.
My mother wanted to know if he lived in London.
The teacher asked me how often I was away from school.
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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