1. He started to live in HaNoi when he was 12
2. We have learnt E for 4 years
4. Lan walked all the way to to school so she was late
5. Mr.Ba used to smoke a lot 3 years ago
6. I spend 15 minutes walking to school everday
7. It's wonderful to spend the weekend in the countryside
8. Nga is looking forward to meeting her aunt again soon
9. He enjoys reading newpapers in the morning
10. Your brother uses the internet everyday, doesn't he?
11. Unless Hong studies harder, she'll fail the exam
12. She hasn't worn that dress since her sister's wedding
13. My sister studied hard so she completed her exam successfully
14. Tam suggested going for a walk
15. If he doesn't come soon, he might be late for the last train
16. If you don't study hard, you'll fail the exam