II/
1. The man who is sitting next to me is my father's friend.
2. The old lamp which is made in China is 5 dollars.
3. English is spoken all over the world,
4. The woman who is sitting next to me is nervous.
5. The car which is made in Japan is $ 4000.
6. Would you mind telling me how to study English?
7. Vinh is always forgetting his homework.