Câu 1: Mr Jones gave the people gloves and said to them, "Protect yourselves from germs." Câu 2: Nam said, "The environment is severely affected by pollution." Câu 3: Mai said, "The burning of fossil fuels leads to air pollution." Câu 4: Peter said, "Intensive insecticide and pesticide sprays in agriculture make the soil contaminated." Câu 5: Nam said, "It's confusing because there are too many web pages about the environment." Câu 6: Scientists said, "Air pollution is one of the causes of the greenhouse effect." Câu 7: Nam said, "Pollution is one of the problems in my neighbourhood." Câu 8: The editor said, "More people are aware of the preservation of natural resources." Câu 9: The students told their teacher, "We are discussing the protection of the natural environment." Câu 10: Nam's father told him, "Use the web search engine to find the information that you need." 1. Mr Jones was very sad and said, "All this rubbish is killing fish and other sea creatures." 2. Nick said, "We can clean the beach together." 3. Mary said to them, "I'll ask our friends and neighbours to come and help us." 4. Mr Jones said to his children, "I'm so happy to hear that, children." 5. Tony said, "The disposal of untreated sewage in rivers and oceans leads to water pollution." 6. Mary said, "Loud and annoying sounds from innumerable vehicles in the highway nearby cause noise pollution." 7. Mai said,"The rising sea level is a product of global warming, a natural phenomenon. The only unnatural thing about global warming is the accelerated rate at which it is happening." 8. Linda said,"Environmental pollution is an impact of human activities on the environment." 1. If it docs rain we will not go out for a walk. 2. If we plant more trees there will be more animals in this area. 3. Unless he works hard he will earn nothing. 4. If I were Alex I would accept that company's offer. 1. B - invention 2. A - pesticide