I. Give the correct form of the words in brackets.

1. Solar domestic heating systems are (economy) ___________ to use

2. We should use solar energy. it is cheap, clean and (limit) ________________

3. If you don't pay your (electric) _________ bill soon, you will be cut off

4. In the future, many building will be (hot) _____________ by solar energy

5. His office is on the (twelve) ___________ floor of this building

6. Televisionj is one of the cheapest forms of (entertain) ____________

7. I get used to (get) __________ up early and having a bath

8. She is a 15 (year) __________ school girl

9. I am going to some French - (speak) ___________ countries

10. This (mix) _____________ consists of oxigen and hidrogen

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

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

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

-Tidal energy is renewable ............ and clean (plenty) -Wind will be used as an ............... friendly sources of energy . (environment) -There are many ways will be used to solve the problem of .......... (pollute) -.............. , fossil fuels are harmful to the environment (fortunate) -We should use them .............. and try to find out alternative sources of power . (economy) -I think that solar energy can be an ............. source of energy in the near future (alter) -It's a clean source of energy . Sailboats couldn't move without this ............. (powerful) -Limit car trips by relying on biking , walking public ............. (transport) -Energy is used to ............ a lot electrical thing (product ) -I don't think so . The solar penels are becoming ............ and easy to install (cheap)

Help!!!

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

-Tidal energy is renewable ............ and clean (plenty) -Wind will be used as an ............... friendly sources of energy . (environment) -There are many ways will be used to solve the problem of .......... (pollute) -.............. , fossil fuels are harmful to the environment (fortunate) -We should use them .............. and try to find out alternative sources of power . (economy) -I think that solar energy can be an ............. source of energy in the near future (alter) -It's a clean source of energy . Sailboats couldn't move without this ............. (powerful) -Limit car trips by relying on biking , walking public ............. (transport) -Energy is used to ............ a lot electrical thing (product ) -I don't think so . The solar penels are becoming ............ and easy to install (cheap)

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Are you looking (1)………………………a cheap, clean, effective source of power that doesn’t (2)…………………………pollution or waste natural resource? Look no further than solar energy. While most fuels now in use are (3)………………………burned at a big rate, solar energy, a power from the (4)………………………, will last as long as the world (5)……………………….This energy has been (6)……………………..to heat and cool homes or to cook food. It has been used (7)…………………… radio batteries and provided power for telephone lines. The devices, (8)…………………….., are cheap to operate but very expensive to produce.

Chọn True, False cho câu sau

Solar energy is a cheap, clean, effective source of power.

A. True

B. False

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

-Tidal energy is renewable ............ and clean (plenty) -Wind will be used as an ............... friendly sources of energy . (environment) -There are many ways will be used to solve the problem of .......... (pollute) -.............. , fossil fuels are harmful to the environment (fortunate) -We should use them .............. and try to find out alternative sources of power . (economy) -I think that solar energy can be an ............. source of energy in the near future (alter) -It's a clean source of energy . Sailboats couldn't move without this ............. (powerful) -Limit car trips by relying on biking , walking public ............. (transport) -Energy is used to ............ a lot electrical thing (product ) -I don't think so . The solar penels are becoming ............ and easy to install (cheap)

Giúp với!!!