1 He is watching ants 改为否定句,2 they are having English class 改为一般疑问句并作出否定回答
题目
1 He is watching ants 改为否定句,2 they are having English class 改为一般疑问句并作出否定回答
3 对november 30th提问 4 wu yifan is cleaning the room改为一般疑问句并作出肯定回答 5 Is Mrs white cook dinner?做出肯定回答和否定回答
答案
He is not watching ants.
Are they having English class? No, they aren't.
What's the date?
Is wu yifan cleaning the room? Yes, he/she is.
Yes, she does. No, she doesn't.
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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