Решение:
- That is an ox.
- Can I have a carton of soup, please? (Предложение корректно)
- They're house is big. (Вместо 'They're' нужно 'Their') -> Their house is big.
- The childrens' room is very small. (Вместо 'childrens'' нужно 'children's') -> The children's room is very small.
- They are five boys in my class. (Вместо 'They are' нужно 'There are') -> There are five boys in my class.
- The boy's names are Jack and Bill. (Предложение корректно)
Ответ: That is an ox. Their house is big. The children's room is very small. There are five boys in my class. The boy's names are Jack and Bill.