II. Give the correct form of the words given to complete the sentences:

1. Solar energy is renewable, ...............................and clean.                                     PLENTY

2. We should reduce the use of..............................at home.                                       ELECTRIC

3. Waves will be used as an...............................friendly sources of energy.              ENVIRONMENT

4. Solar power can be used to .................................or cool our houses.                    HOT

5. There will be a..................................of energy in the near future.                         SHORT

6. Scientists are looking for clean and ..........................sources of energy.               EFFECT

7. More renewable energy sources will be used to solve the problem of ..........        POLLUTE

8. ................................., fossil fuels are harmful to the environment.                        FORTUNATE

9. The...........................of wind turbines will be completed by next Friday.              INSTALL

10. ...........................particles reach the Earth in just 8 minutes.                                ENERGY

IV. Give the correct form of the words given to complete sentences.

      1.   We should use them                             and try to find out                  ECONOMY                     alternative sources of power.

      2.   Solar energy is                        , plentiful and clean.                            RENEW

      3.   I think that solar energy can be an                               source of        ALTER                            energy in the near future.

      4.   We should reduce the use of                          at home.                     ELECTRICAL

      5.   It’s a clean source of energy. Sailboats couldn’t move without        POWERFUL                         this             .

      6.   Waves will be used as an                     friendly source of energy.      ENVIRONMENT

      7.   Limit car trips by relying on biking, walking, public                         TRANSPORT                                   .

      8.   Solar power can be used to                              or cool our houses.     HOT

      9.   Energy is used to                     a lot of electrical things.                    PRODUCT

      10. There will be a                         of energy in the near future.              SHORT

Give the correct form of the word given to complete the sentences.

1. Tidal energy is renewable, _______________and clean. (plenty)

2. Wind will be used as an _______________friendly sources of energy. (environment)

3. There are many ways will be used to solve the problem of _____________. (pollute)

4. Solar power can be used to ______________or cool our houses. (hot)

5. __________________, fossil fuels are harmful to the environment. (fortunate)

6. We should use them______________ and try to find out alternative sources of power. (economy)

7. Solar energy is_________________, plentiful and clean. (renew)

8. I think that solar energy can be an________________ source of energy in the near future. (alter)

9. We should reduce the use of________________ at home. (electrical)

10. It’s a clean source of energy. Sailboats couldn’t move without this____________. (powerful)

Give the correct form of the words given to complete the sentences.

1.Solar energy is renewable,___________and clean.                                plenty

2.We should reduce the use of___________at home.                               electric

3.Waves will be used as an____________friendly souce of energy.            environment

4.Solar power can be used to____________or cool our houses.                 hot

5.There will be a_____________of energyin the near future.                       short

Give the correct form of the words given to complete the sentences

1.Solar energy is renewable, ........and clean

PLENTY

2.We should reduce the use of ........at home

ELECTRIC

3.We were .......with the service at the cinema. Everything was terrible

SATISFY

4.The film is a big .........It is boring from beginning to end

DISAPPOINT

5.Waves will be used as an ......friendly source of energy

ENVIRONMENT

6.Solar power can be used to ........or cool our houses

HOT

7.There will be a .......of energy in the near future

SHORT

8.Scientists are looking for clean and .......sources of energy

EFFECT

9.More renewable energy sources will be used to solve the problem of......

POLLUTE

10.I don't like horror film because they are too......for me

FRIGHT

11.........., fossil fuels are harmful to the environment

FORTUNATE

12.The.......of wind turbines will be completed by next Friday

INSTALL

13.........particles reach the Earth in just 8 minutes

ENERGY

Give the correct form of the word given to complete the sentences.

1. Tidal energy is renewable, _______________and clean. (plenty)

2. Wind will be used as an _______________friendly sources of energy. (environment)

3. There are many ways will be used to solve the problem of _____________. (pollute)

4. Solar power can be used to ______________or cool our houses. (hot)

5. __________________, fossil fuels are harmful to the environment. (fortunate)

6. We should use them______________ and try to find out alternative sources of power. (economy)

7. Solar energy is_________________, plentiful and clean. (renew)                           

8. I think that solar energy can be an________________ source of energy in the near future. (alter)

9. We should reduce the use of________________ at home. (electrical)  

10. It’s a clean source of energy. Sailboats couldn’t move without this____________. (powerful)

I. Give the correct from of the word given to complete the sentence.