C. Complete the sentences using the Present Perfect Continuous form of the verbs in brackets. Поставить глагол в Настоящем совершенном продолженном времени. См.грамматику GR 7.
9. I money to environmental organisations for the last five years. (donate)
10. I at the zoo for a year already! (volunteer)
12. It for two hours and it won’t stop! (rain)
13. The students to reduce pollution. (try)
14. We hard to raise awareness of environmental problems. (work)
15. Acid rain natural habitats for years. (destroy)

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