1. Why do you often listen to classical music?

2. They are planting trees by the roadside in order to reduce traffic noise.

S + V + in order (for O) to + V

3. How long did the Bach concert last?

4. Nam doesn't work as hard as Long.

5. If Pam had driven carefully, she would not have broken her arm in the accident.

If + S + had + P.P (quá khứ phân từ), S + would + have + P.P

6. The road is being repaired at present.

S + is/ am/ are + being + VpII + by O

7. English is spoken in most of Canada.

S + is/ am/ are + VpII + by O

8. It was not until I was 15 that I knew how to ride a bicycle.

It was not until + S + V ... + that + S + V ...