He wants to be a policeman.(改为否定句） He—— ——to be a policeman.
题目
He wants to be a policeman.(改为否定句） He—— ——to be a policeman.
My aunt is a reporter.(对reporter提问） What ___ you aunt ___?
She is cleaning the room now.(对cleaning the room 提问） ___she___now?
It is sunny today.(对sunny 提问） ___the weather __today?
答案
doesn't want
does do
what's doing
what's like
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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