12. Don't throw that old____________ away. We can decorate it to make a flower vase.
A. can B. glass C. bottle D. paper
13. I think you should____________ to save water.
A. have a bath B. go swimming C. heat water D. have a shower
14. We should____________ to prevent pollution.
A. use reusable bags B. plant more trees C. turn off the lights D. save electricity
15. We will buy____________ for our class
A. water bottles B. recycling bins C. energy-saving lights D. refillable pencils
16. If we plant more trees in the schoolyard, the school will become a ____________ place.
A. darker B. dirtier C. greener D. more polluted
17. If we all use ____________ bags, we will help the environment.
A. new B. cheap C. reusable D. reduced
18. Plastics, glasses and chemicals underground are harmful ____________ plants and animals.
A. to B. of C. in D. at
19. These three Rs ____________ reduce, reuse, and recycle.
A. stand up B. stand for C. ask for D. means
20. Because plastics bags are very hard to ____________, they will cause pollution.
A. dissolve B. wrap C. tear D. collect
21. If there is a rubbish bin in every class, the classroom will become ____________.
A. harmful B. dirtier C. cleaner D. lighter\
giúp mình nhanh vs ạ