XII.
1. You didn't forget to turn off the TV last night, did you?
2. Why don't you go to work by bike?
3. Mr Long used to live in the countryside when he was a child.
4. More trees will be planted along this street.
5. Pollution is the most serious problem, is't it?
XII.
1. density
2. malnutrition
3. Poverty
4. overpopulation
5. slums
6. spacious
7. hunger
8. explosion
9. living standards
10. flea market
XIII.
1. shall we
2. didn't you
3. can you
4. doesn't he
5. aren't they
6. didn't they
7. aren't I
8. wasn't it
9. have they
10. isn't it
XIV.
1. Shanghai has more skyscrapers than Jakata
2. Mr Lam used to live in the country when he was a child.
3. The countryside fuffers less pollution than the city.
4. Why don't you go to work by bike?
5. Tokyo has less billionaires than New York.
6. More trees will be planted along this street
7. Overpopulation cause a lot of social problems in this area, doesn't it?
8. Did a group of foreigners visit the sulms last week?
