Explicație:
1) There isn't a basement in my house.
2) There isn't a park near my school.
3) There aren't twenty-five students in my class.
4) There isn't a computer in our classroom.
5) There aren't four people in my family.
6) There isn't a big kitchen and a study.
7) There isn't a book in my bag.
8) There aren't twenty classrooms in my school.
