Ann eats pears every day.改为否定句
题目
Ann eats pears every day.改为否定句
He has an orange.【改为复数句】
【Sports】 star Cindy Smith 【eats】 【good】 【every day】 .框框里哪个错了改错
His b【 】 is next week.补全单词
答案
Ann doesn't eat pears every day.
He has some oranges.
Sports star Cindy Smith eats well every day.
His birthday is next week.
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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