把下列句子改成否定句和一般疑问句,并作否定回答.
题目
把下列句子改成否定句和一般疑问句,并作否定回答.
Tom is watching TV.
We go to a movie on weekends.
Sue and Sally are taking on the phone.
I am doing homework now.
There is some money on the desk.
答案
1 Tom isn't watching TV.
Is Tom watching TV?
No,he isn't.
2 We don't go to a movie on weekends.
Do you go to a movie on weekends?
N,we don't .
3 Sue and Sally aren't talking on the phone.
Are Sue and Sally talking on the phone?
No,they aren't.
4 I am not doing homework now.
Are you doing homework now?
No,I am not.
5There isn't any money on the desk.
Is there any money on the desk?
No,there isn'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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