Một người thuê sơn mặt ngoài của một cái thùng sắt không có nắp dạng hình lập phương có cạnh 0,8m. Biết giá tiền mỗi mét vuông là 15000 đồng. Hỏi người ấy phải trả bao nhiêu tiền?

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FUTHER PRACTICE 1. Give the correct form of the words in the brackets in each of the following sentences 1. ________ elements have been found in both ground and underground water sources. (pollute) 2. The soil becomes ________ because of the use of so many pesticides and fertilizers. (contaminate) 3. People believe that the ________ water has brought cancer to the local residents. (pollute) 4. A number of cleaning products contain ________ chemicals. (harm) 5. Astronomers are concerned about light because they have ________ in viewing activities in the sky and out space. (difficult) 6. ________ waste spills can contaminate groundwater. (industry) 7. Noise is considers as ________ pollution. (environment) 8. Water samples collected at these villages were seriously ________ with bacterial. (contaminate) 9. ________ habitats have been destroyed in recent years. (nature) 10. Light pollution makes us ________ to see the stars in the sky. (able) 11. The natural__________ beauty of Thodupuzha has attracted many Malayalam movie makers. (scenery) 12. Flags__________ nations, not languages. (symbol) 13. Ayers Rock is also one of the top tourist__________ in Australia. (attract) 14. The Eiffel Tower is the most__________ Parisian landmark. (icon) 15. English is recognized as an__________ language in a total of 67 different countries. (office) 2. Complete the sentences with the verbs in brackets. Use conditional sentences type 1. 1. If the air in a City________ (get) very polluted, it can make people’s eyes burn. 2. If we dump all sorts of Chemicals into rivers, we________ (not be) able to swim in them in the future. 3. Many wildlife habitats will be destroyed if people________ (keep) polluting the environment. 4. If we all use public transport more, we________ (help) reduce air pollution. 5. If we________ (not stop) over-fishing the oceans, many species________ (become) extinct. 6. If everyone________ (recycle) paper, metal and glass, we ________ (not produce) so much rubbish. 7. We________ (have) dirty seafood if we________ (dump) rubbish into the sea. 8. If global warming________ (continue), temperatures________ (rise) even higher. 9. If light pollution________ (keep) growing, you________ (not be) able to see even the Big Dipper at night. 10. We________ (threaten) our own existence if we________ (not cut down) the waste rapidly.