1. This supermarket is less expensive than the one across the street.

2. The English teacher has taught at our school for three years.

3. My doctor said that I should not eat in front of the television.

4. If you don't study harder, you won't pass the exam.

5. Hanoi suburban areas are not as noisy as Hanoi urban districts.

6. How about going to uncle Huan's farm this weekend?

7. Sarah had difficulty in learning to read Japanese.

8. The book was too complicated for us to understand.

9. Sandy studied more diligently in the past than she does now.

10. The first book was inspired by the Chinese more than a thousand years ago.