Choose the correct answers A, B, C, or D to finish the sentences.
Question 1. Please collect all recyclable materials, and take them to the ____________ factory.
Question 2. We can reuse things like____________.
Question 3. If you have old clothes, will you give them to those ___________?
Question 4. If we plant more trees in the schoolyard, the school will become a ____________ place.
Question 5. If you press the button, what ____________?
Question 6. If people turn off all electric appliances in one hour all over the world, they can save lots of ____________.
Question 7. If I pass this exam, I ____________ to the university next summer.
Question 8. Plastics, glasses and chemicals underground are harmful ____________ plants and animals.
Question 9. If we all use ____________ bags, we will help the environment.
Question 10. If I ____________ time, I ____________ you with planting that tree.
Question 11. If she ____________, we will miss the bus.
Question 12. If you go out with your friends tonight, I ____________ the film on TV.
Question 13. If there is a rubbish bin in every class, the classroom will become ____________.
Question 14. You will get a good seat if you ____________ first.
Question 15. I think you should____________ to save water.
Question 16. Don't eat much sweet food. It harms your teeth.
Question 17. We should____________ to prevent pollution.
Question 18. Your school is so green with lots of trees!
Question 19. These three Rs ____________ reduce, reuse, and recycle.
Question 20. People throw away millions of____________ every year.
Question 21. We will be late unless we ____________ now.
Question 22. If you don't do exercise, you won't be healthy.
Question 23. Because plastic bags are very hard to ____________, they will cause pollution.
Question 24. Don't throw that old____________ away. We can decorate it to make a flower vase.
Question 25. Wow! Your new bike is so cute.
Question 26. I __________ to London if I don’t get a cheap flight.
Question 27. Don’t throw rubbish ____________ the river because you will make it dirty.
Question 28. If people ____________ public transport, there will be less pollution.
Question 29. What a lovely hat!
Question 30. We can recycle old clothes and make them into____________.
Question 31. What can we do ____________ air pollution?
Choose a word that has a different stressed syllable from others.