2. The stadium is behind the park (front)

=> The park is in front of the stadium.

3.Mrs. Khanh has a daughter, Nguyet (mother)

=> Mrs.Khanh is Nguyet's mother.

4. Are there five rooms in Nhung's house? (have)

=> Does Nhung's house have five rooms?

5. My father rides his motorbike to work every day (by)

=> My father goes to work by his motorbike everyday.