16. In some English speaking countries, turkey and pudding are _________ food at Christmas. A. national B. historical C. traditional D. possible 17. Polluted air in the city made Bob ______ ill. A. become B. became C. to become D. becoming 18. This animal, the ______, is a symbol of Australia. A. rabbit B. panda C. kangaroo D. tiger 19. A huge wave that can destroy towns near the sea is called ________ A. drought B. earthquake C. typhoon D. tsunami 20. ______pollution can directly cause hearing loss. A. noise B. visual C. Thermal D. Soil 21. If we _____ children the importance of the environment, they will become more aware of saving energy. A. teach B. taught C. will teach D. had taught 22. The town hall ______ badly by the fire last night. A. damaged B. has damaged C. has been damaged D. was damaged 23. The air is polluted ________ smokes from the factories. A. because B. although C. So D. because of 24. Don’t drink that water. It’s . A. pure B. damaged C. contaminated D. dumped 25. By the time I _____home, my family _____to the shelter with me. A. arrived- took B. had arrived/ took C. arrived/ had taken D. had arrived- had taken Làm hộ mik vs ạ nhanh ạ