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1. Environmental pollution has ___ to lots of health problems. *
led
made
caused
resulted
2. ___ industrial waste, many fish cannot survive. *
Because of
As
Because
Since
3. To protect the environment, we should use more ___ sources of energy such as wind and solar power. *
reproduced
renewable
reused
recycled
4. According to scientists, exhaust fumes are ___ our hometown. *
measuring
radiating
treating
poisoning
5. ___ effects created an amazing world in the movie, it looked so real! *
Terrific
Special
Incredible
Moved
6. If tourists ___ rubbish in the river, the water would be cleaner now. *
threw
didn’t
throw
don’t throw
7. Linda: Where have you been so long, Chris? I ___ for ages. Chris: I ___ to Vietnam with my family. *
don’t see / travel
don’t see / have traveled
haven’t seen / traveled
didn’t see / traveled
8. Australian ___ English as their mother tongue. *
have use
use
Tùy chọn 4
have used
9. The flight ___ off at 19:10, so we need to hurry up or we’ll miss it. *
takes
took
will take
is going to take
10. If you have a chance to visit Thailand, come to see the Grand Palace. It is one of the most popular tourist ___ in Thailand. *
attracted
attractive
attractions
attracts
11. Chicago ___ the third largest city in the United States. *
will be
has been
was
is
12. Chicago ___ "The Windy City *
often is called
is often called
often calls
was called
13. Over three million people ___ in the two hundred and twenty-five mile area of Chicago. *
is living
lived
will live
are living
14. Today, some of the world's tallest and most famous skyscrapers ___ in the city. *
finds
is found
will be found
are found
15. Located in the heart of the city ___ the one hundred and ten story Sears Tower. *
will be
is
are
has been
16. Trees have ___ a meaningful role in the historic development of Canada. *
done
played
given
taken
17. Singapore is famous for its ___ and green trees. *
cleanliness
cleaning
cleanly
clean
18. On Christmas Eve, most big cities, especially London are ___ with colored lightsacross the streets and enormous Christmas trees. *
made
hang
put
decorated
19. In the United States there are 50 ___ and six different time zones across the country *
countries
states
towns
nations
20. The Maoris ___ in New Zealand from other Polynesian islands over a thousand years ago. *
arriving
arrived
has arrived
arrives