không cần giải thích nha ghi nhanh cho mình là đc III. Choose the best option (A, B, C or D) to complete these sentences. 16. As soon as the floodwater down, people their houses. A. went – cleaned B. had gone – cleaned C. went - had cleaned D. had gone – had cleaned 17. The old tradition of first-footing is still practises today in _____ A. Scottish B. Scots C. Scotland D. English 18. In Canada, the serving of coffee at the end of an evening is a signal that it is time for _____ to prepare to leave. A. visitors B. tourists C. holiday makers D. relatives 19. If the factory continues dumping poison into the lake, all the fish and other aquatic animals _____. A. die B. to died C. dead D. will die 20. The Maori in New Zealand greet each other by _____ their noses. A. punching B. touching C. blowing D. kissing 21. Australia has the biggest _____ station in the world. A. nations B.cattle C. games D. continents 22. There is a red maple leaf on the _____ of Canada. A. flag B. banner C. money D.currency 23.Water _____ in the lake has made the fish die. A. pollution B. pollute C. polluted D. polluting 24. Water pollution is the _____ in the lake has made the fish die. A. contaminating B. contaminate C. contaminated D. contamination 25. Don’t drink that water. It’s _____. A. damaged B. dumped C. contaminated D. contamination 26. By the time we got to the cinema, the film _____. A. started B. had started C. starting D. was starting 27. Emergency teams are still removing the _____ from the plane crash. A. dirt B. debris C. dust D. sweet 28. The heavy rain has caused _____ in many parts of the country. A. storms B. floods C. mudslides D. drought 29. If we use water _____ more people will have cleaner water. A. care B. carefully C. careless D. carelessly 30. Water pollution make some aquatic animals _____. A. dying B. to die C. die D. died 31. The city has a summer _____ in the park . A. festivily B. festive C. festively D. festival 32. English is an _____ language in Singapore A. office B. official C. officer D. officially 33. She prefers English _____ France A. to B. for C. at D. in 34. Three hundred people were left _____ by the earthquake. A. homely B. unhomely C. homeless D. homeness 35. there will be a _____ rainstorm next week . A. power B. powerful C. powerless D. powerly