1.I don't have a bookshelf in my bedroom.

→There aren't any bookshelf in my bedroom→There aren't any bookshelf in my bedroom

2. This house is small.

→ It is a small house.→ It is a small house.

3. The bookstore is to the left of the toystore.

→ The toystore is to the right of the bookshop→ The toystore is to the right of the bookshop

4. Hoa often walks to school every morning.

→ Hoa often goes to school on foot every morning.