1.what__did she say about me?
题目
1.what__did she say about me?
2.where__he go on vacation?
he went to the mountains.
3.I__an old bike from a yard sale last week.
4.I'm sorry you didn't have fun__your day off.
5.__you__your key?
yes,it was in my besk.
答案
1.What else did she say about me?2.Where did he go on vacation?3.I bought a old bike from a yard sale last week.4.I am sorry you didn't have fun on you day off.5.Did you find your key?
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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