Find the mistake in the four underlined parts A, B, C or D of each sentence.
Question 1. If there will be too much exhaust fume in the air, our breathing will be badly affected.
Question 2. Unless you pour oil on water, it will float.
Question 3. Remember to turning off the light when you go out.
Question 4. If she throws the rubbish onto the river, all fish will die.
Question 5. We can save money if we reduce gas, electricity but water.
Question 6. If someone came into the store, smile and say, “May I help you?”
Question 7. We will save our world if we protected our environment.
Question 8. I will come to meet Mr. Pike and tell him about your problems if you didn’t solve them yourself.
Question 9. If there isn’t enough food, we couldn’t continue our journey.
Question 10. If you try these cosmetics, you look five years younger.
Question 11. We can hire a mini bus if there will be enough people.
Question 12. People collect the broken glass and sending it to the factories.
Question 13. If she be late for her English class, the teacher will be angry.
Question 14. You have to take a taxi home if you want to leave now.
Question 15. If anyone will phone, tell them I’ll be back at 11:00.
Question 16. If we keep on using more and more cars, we are running out of oil.
Question 17. Sam will not graduate unless he doesn’t pass all the tests.
Question 18. We should reuse and recycling bottles and cans to reduce garbage.
Question 19. Reusable bags are good because they make of natural materials.
Question 20. If you do not understand what were written in the book, you could ask Mr. Pike.
Choose the word whose underlined part is pronounced differently.
Choose the word whose main stress is placed differently.
Choose the best answers to complete the following sentences.
Question 46. The _______ of water pollution is the death of many types of fishes.
Question 47. People should _______ noise.
Question 48. Rising sea level can make some cities _______.
Question 49. Many plants and animals die because of _______.
Question 50. My older sister often _______ old envelopes to decorate her room.
Question 51. _______ can be recycled.
Question 52. You should put used cans and glass bottles into _______.
Question 53. Lan always _______ books and clothes with her friends and cousins.
Question 54. Soil pollution _______ many bad effects on ecosystems and human life.
Question 55. The air in this city is _______ by emissions from nearby factories.
Question 56. We shouldn’t use _______ to store food, let’s use bags made of natural materials.
Question 57. We should use _______ plastic boxes or bottles because they are good for health and safe for the environment.