Bài 4

1. A

2. B

3. C

4. A

5. C

Bài 5

1. Vinh really enjoys hanging out with his friend

2. He prefers listening to pop music to waching TV after school

3. Which laguages do the most ethnic people's in Vietnam speak?

4. Although the girl worked hard, her stepmother wasn't happy

5. The hotel we was first was rather expensive so wa decided to look for another

6. Because of being inexperienced, she lost her job

Bài 6

1. We were having dinner when the telephone rang

2. Internet has changed the way we communicate