Here are the completed sentences:

1. There are many flowers in our garden.
- Our garden has many flowers.

2. Her hair is long.
- She has long hair.

3. There are four people in her family.
- Her family has four people.

4. Does your class have twenty-five students?
- Are there twenty-five students in your class?

5. Peter is Mary's brother.
- Mary has a brother named Peter.

6. She likes noodles.
- Her favorite food is noodles.

7. The car is blue.
- It is a blue car.

8. The flower garden is in front of the house.
- The house is in front of the flower garden.

9. The supermarket is far from my house.
- The supermarket is not close to my house.

10. Each classroom in my school has one television and one refrigerator.
- There is one television and one refrigerator in each classroom in my school.