帮忙造句一下：1.I am2.You are 3.He/She is4.There is going to be a.
题目
帮忙造句一下：1.I am2.You are 3.He/She is4.There is going to be a.
要快！急！
答案
1.I am an English teacher.
2.You are so beautiful.
3.He is an engineer.She is a keyboard operator.
4.There is going to be a football match this evening.
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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