Скажите, что это не так. Употребите сокращенную форму глаголов.
I will be sad.
It will be funny.
She will be ready.
We will be busy.
He will be hungry.
It will be slippery.

I won't be sadIt won't be funnyShe won't be readyWe won't be busyHe won't be hungryIt won't be slipperyP.S. это не 10-11 класс точно