II. Choose the word which has the underlined part pronounced differently from the rest. Question 6. A. recycle B. medical C. chemical D. athletic Question 7. A. pollute B. botanic C. contaminate D. economy Question 8. A. into B. history C. tiny D. disease III. Choose the word which is stressed differently from the rest. Question 9. A. national B. grammatical C. medical D. chemical Question 10. A. athletic B. historic C. dramatic D. classic Question 11. A. scientifically B. economic C. artistic D. scientific IV. Choose the correct answer to complete each sentence. Question 12. Water pollution can put negative __________ on our health. A. contamination B. affects C. effects D. problems Question 13. A: How can light pollution __________ animals? B: It can make animals change their behavior patterns. A. cause B. make C. affect D. lead Question 14. The dove is a universal __________ of peace. A. symbolizing B. symbolize C. symbolic D. symbol Question 15. The city has an atmosphere which is quite ________. You will never feel like that in other places. A. important B. normal C. unique D. common Question 16. __________ about the storm that stroke Hanoi last night? A. Did you hear B. Do you heard C. Have you hear D. Did you heard Question 17. Many people __________ because of the earthquake last week. A. did injure B. injured C. have injured D. were injured Question 18. When I looked at the river, I knew it __________ for a long time. A. had contaminated B. had been contaminated C. was contaminated D. contaminated Question 19. All flights to Ha Noi had to be cancelled __________ the storm. A. as a result B. due to C. because D. so Question 20. When we were young, we __________ in the river near our home. A. used to swim B. have swum C. had swum D. were swimming