`IV`
1. because → so
2. What→ Who
3. but → bỏ $but$
4. Who → What
5. many → much
6. so → because
7. Although it's entertaining, I don't watch this programme
8. much → many
`I` Speaking
1. What is your favourite channel?
2. Where are you living now
3. What time does Nick leave home for school?
4. Why does she go to see the doctor?
5. What are you talking about?
6. Where is the cinema?
7. How often do you go to the movie?
8. How does he travel to Nha Trang?