肯定回Yes,itwill.

否定回No,itwon't.

-Will it be hot tomorrow？

-No， .it won’t.

相关句型：

1. It will do to set the clothes tree in the corner.

把挂衣架放在墙角就行。

It will not be cold tomorrow.明天天气不会冷，肯定句改成否定在助动词will 后面加not即可，这是英语语法这么规定的，例如:She will go to college next year.她明年将去上大学。改成否定句就是:She will not go to college next year.她明年不会上大学。