1. She looked after her sister who is five years younger than her

2. The song which you are listening to is a popular one

3. Lan who has just received a scholarship is the best student in our school

4. Phong is going to play badminton with his frs who live next to his house

5. I like reading books written by To Hoai whose books are about the natural world

6. She put on her valuable jewels which her husband gave her on their wedding day

7. The girl whose mother is a famous pianist can play the piano very well

8. Lan whom I often talk to you about her is my closet friend 

9. That is the only road which leads to the National park

10. Nam who got excellent marks in the last examination is planning to go study overseas

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