I. Choose the correct answer which fits each gap.
There are number of things we can do if we want to help save our (1) _____. For example, if we stop
wasting paper and recycle paper and cardboard, we'll save some of the millions trees which are cut (2)
_____ every year. As far as the problem of rubbish is concerned, if we recycle bottles and cans and
organic waste, and stop taking (3) ______ from the supermarket, this will all make a big difference. We
also have to stop making (4) _____ car journeys so as to cut down air pollution. Try walking or using a
bike (5) _____. Water is another problem, and we should all (6) _____ showers, not baths, to save water.
Finally, we need to stop using so (7) _____ energy, so try changing to (8) _____ light bulbs, and turning
off unnecessary lights.

6

1. a. moon b. planet c. home d. source
2. a. out b. up c. down d. into
3. a. shopping b. recyclable c. plastic d. paper
4. a. abundant b. unnecessary c. unlimited d. inconvenient
5. a. instead b. replace c. despite d. in place
6. a.make b. take c. get d. wash
7. a. lots of b. little c. much d. many
8. a. waste-energy b. save-energy c. high-energy d. low-energy

VII. Put in the correct question tags for each sentence.

1. There are too many people living in the city, ___________?
2. Malnutrition is the major cause of death for children living in slums, ___________?
3. Visitors don’t usually visit the slums, ___________?
4. Phong had a very good time in Brazil, ___________?
5. Authorities will have to find solutions to prevent immigration, ___________?
6. She has lived in Dharavi slum for years, ___________?
7. Phong thinks Brazil is interesting, ___________?
8. The world’s population isn’t growing in all countries, ___________?
9. Life must be difficult in the slums, ___________?
10. The homeless can’t afford to pay rent, ___________?
11. It is not safe for tourist to visit the slums, ___________?
12. Everybody wants to save the world, ___________?

VI. Complete the sentences with more, less or fewer.

1. In Vietnam, there are ___________ motorbikes today than 10 years ago
2. There were ___________ cars on the roads twenty years ago.
3. Small towns have ___________ traffic and pollution than big cities.
4. China is still the most populated, but India will have ___________ people than China by
2022.
5. Because there is ___________ crime in the countryside, crime is not a problem for people
living here.
6. If motorists were to drive carefully, they would have ___________ accidents.
7. You should eat ___________ junk food and start to take better care of your health.
8. People living in the cities earn ___________ money than those who live in rural areas.
9. If ___________ people used disposable water bottles, there would be ___________ plastic in
landfills.
10. We need to build many ___________ social homes to solve housing crisis.

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