7. Keep the water clean, or the fish in this lake will die.
-> If you...
8. Remember to turn off all the lights here, or you will waste lots off electricity.
-> If you...
9. Be patient, or you won't pass the examination.
-> If you...
10. Plant more trees, or the air will be more polluted.
-> If we...
11. Water these trees or they will die.
-> If you...
12. Leave now or we will miss the plane
-> If we...
13. Be careful or you may fall.
-> If you...
14. Plant more trees and we will have fresh air
-> If we...
15. Use reusable bags and we'll help the environment
-> If we
16. People use too much bright lighting in big cities. They have light pollution.
-> If people...
17. Save water of there will be less fresh water to use in the future.
-> If we...
18. Throwing rubbish on the lakes or river makes the water polluted
-> Throwing rubbish...
19. Walk more and you will be healthy
-> If you...
20. People stop using so much energy. They want to save the environment.
-> If peole...
V. Thêm từ và sắp xếp ( hong chắc lắm)
1. name/ Mai/ and/ she/ in/ class 6A
->
2. If/ she/ become/ club president,/ she/ encourage students/ go to school by bike or bus.
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3. It/ be/ very friendly/ to the environment.
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4. Next, she/ talk/ teachers at the school/ about/ putting recycling bins/ in/ the classroom.
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5. Thus, / school/ look cleaner/ and more beautiful
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6. Finally, / a used book festival/ be organized/ so students/ can/ swap/ used books.
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7. In/ opinion, / she/ be/ an excellent club president
->