1. She has worked as a secretary for 5 years.
2. I started learning E in 2000.
3. They built this hotel a year ago.
4. He had his breakfast at 7o'clock.
5. It was 10 years ago that I last went to HCM city.
6. I haven't been to NY before.
7. How much does her dress ?

8. How much do these shoes ?
What is the price of these shoes ?
9. How much does this ruler ?
What is the price of this ruler ?
10. How much did the blue shirt ?
What was the price of the blue shirt ?

11. We spend 30m reviewing our lesson before class.
12. He spent 12h to fly from Hanoi to London.
13. I spend 5m going to school by bike.
14. Mai is the prettier of the two girls

15. Of the 3, Nam is the tallest boy. 
16. What is the distance between the village and the beach ?
17. Walking home late at night is very dangerous.
18. He is a careful driver.
19. Joa is a hard-working student.