1. …………… water is one of the factors that have driven many species to the verge of extinction.
A. Contaminating
B. Contaminate
C. Contamination
D. Contaminated
2. It’s recommended that we become more concerned ……………… the environment around us.
A. of
B. to
C. with
D. about
3. The …………. Use of pesticides and herbicides has led to contamination of groundwater in some areas.
A. widespread
B. occasional
C. general
D. experimental
4. Air ……………, together with littering, is causing many problems in our cities today.
A. pollute
B. pollution
C. polluting
D. polluted
5. Many people in this city have received medical …………. for the disease.
A. support
B. treatment
C. help
D. assistance
6. The reduction in air pollution was ………… last year.
A. dramma
B. treatment
C. help
D. assistance
7. In many poor nations, there are frequent outbreaks of cholera and other diseases because people there ………….. untreated water.
A. drink
B. to drink
C. drinking
D. drank
8. The road in front of my office is always ……….. when it rains heavily.
A. to flood
B. flooding
C. flood
D. flooded
9. Too much carbon dioxide in the atmosphere causes global …………….
A. warm
B. warming
C. warmly
D. warmth
10. It won’t be possible to save the Earth if we don’t take ………… right now.
A. action
B. job
C. work
D. duty
11. Singapore is famous for its …………. And green trees.
A. cleanliness
B. cleanly
C. cleaning
D. clean
12. On Christmas Eve, most big cities, especially London are ……………. with coloured lights across the streets and enormous Christmas trees.
A. decorated
B. hang
C. put
D. made
13. In the United State, there are 50 …………… and six different time zones across the country.
A. decorated
B. nations
C. towns
D. countries
14. I once tried to ………… apple pie when I was in London. It was really delicious.
A. do
B. cook
C. make
D. show
15. You should go to Canada in summer because it is the most popular time for visitors to ………….. Niagara Falls and see the beautiful sights there.
A. stay
B. look
C. tour
D. visit
16. Nowadays you still see the ……….. men wear kilts (skirts) to wedding or other formal occasions.
A. Scottish
B. Scotland
C. Scots
D. Scot
17. The USA has a population of about 304 million, and it’s the third ……… country in the world.
A. smallest
B. largest
C. narrowest
D. highest
18. In some English speaking countries, turkey and pudding are ……….. food at Christmas.
A. national
B. historical
C. traditional
D. possible
19. New Zealand ………… lovers of nature and fans of dangerous sports.
A. attracts
B. keeps
C. calls
D. asks
20. Queenstown in New Zealand has got beautiful ……… and a dry climate, so it’s ideal for outdoor activities.
A. look
B. viewing
C. atmosphere
D. scenery