按要求该写句子

题目

按要求该写句子
1：Let's go at six o'clock (改写否定句）
2：Are they having lunch at the school now?(用every day 替代now)
3：My brother's favourite subject Chinese(改为同义句）
4：We're cleaning our classroom(对画线部分提问）
5：There in only one American student in my class(对 only one 这部分提问）

答案

楼上的一些都错了.希望楼主甄别.
Let's not go at six o'clock.
Do they have lunch at the school every day?
My brother likes Chinese best.或者Chinese is my brother's favourite subject.
对cleaning our classroom提问What are you doing?
How many American stuents are there in your class?