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МатематикаВопрос:
13. The students ________ to reduce pollution. (try)
Ответ:
The students have been trying
Похожие
- 10. You (ever work) _______ in a shop?
- 11. I ________ money to environmental organizations for the last five years. (donate)
- 12. It ________ for two hours and it won't stop! (rain)
- 14. We ________ hard to raise awareness of environmental problems. (work)
- 15. Acid rain ________ natural habitats for years. (destroy)
