**Choose the best option:

1.A lot of dancers go to Rio de Janeiro to ______ the Rio Carnival.

A.join

B. perform

C. attend

D.appear

2. Everybody attends the festival _____ fun.

A.with

B. for

C. in

D. of

3. On Thanksgiving, families and friends _____ to have a feast.

A.meet

B. arrive

C. gather

D. appear

4. Mid-autumn festival is a famous _____ festival in some Asian countries.

A.religious

B. seasonal

C. arts

D. superstitious

5. The Glastonbury Festival is afamous performing ____ festival in England. There people enjoy contemporary music, dance, comedy, theatre ans other arts.

A.religious

B. seasonal

C. arts

D. superstitious

6. ______ do people celebrate the festival?

- They celebrate it with street fair and live music.

A.when

B. where

C. what

D. how

7. ______ does the festival take place?

- Every year.

A.when

B. how long

C. how often

D. how

8. The _____ of the Rio Carnival is the Samba Parade.

A.highlight

B. dance

C. performance

D. music

9. _______ energy sources like coal, natural gas, and oil produce a lot of carbon dioxide.

A.renewable

B. non-renewable

C. dangerous

D. limited

10. We will use ______ energy sources like wind and solar energy to solve the problem of pollution.

A.renewable

B. non-renewable

C. plentiful

D. limited

11. Hydro power is _____ because dams cannot be built in certain areas.

A.abundant

B. cheap

C. limited

D. clean

12. Nuclear energy is renewable and clean. But it is expensive and ________.

A.polluting

B. safe

C. dangerous

D. available

13. Coal is _____ but it will be replaced by another renewable source.

A.plentiful

B. limited

C. clean

D. convenient

14. The wind and the sun are called _______ sources of energy because they can create a lot of energy for us.

A.alternative

B. available

C. replace

D. clean

15. Fossil fuels are convenient. However, they are ______ to the environment.

A.polluting

B. exhaustible

C. harmful

D. unlimited