Поставте пожалуйста во множественное число! This is my brother. That is my book. даю...

Question

Поставте пожалуйста во множественное число!
This is my brother.
That is my book.
даю 10балов

Answer 1

Tris is my brothers 
That is my books

Answer 2

This is my bother(s)
Thet is my book(s)