1. we continued to study in spite of the noise
2. you won't need a computer because....
3. he has learnt english for 3 years
4. i didn't have your phone number so i couldn't phone you
5. it's very interesting to live on mars ( sao hỏa )
6. peter may not come to the party tonight
7. this is the three times it has been to the restaurant
8. da nang is one of the rich city in vietnam
