IV.
1. Peter lives in a small house in the countryside
2. No, she doesn't.
3. He likes walking to school because he think it's good exercise.
4. Mrs. Hang is the most wonderful teacher in his school.
V.
1. Nam and his sister often listen to music at 9 P.M.
2. Hoa is watching TV in the living room now.
3. Is Tra Co Beach the longest beach in VietNam ?
4. Is there a lamp, a bookself and two pictures in Ba's room ?
VI.
1. My house is smaller than your house
→ Your house is bigger than my house.
2. It woud be a good idea for you to practise speaking English every day
→ You should practise speaking English every day.