Complete the sentences with people must or people must not and write them down. Example: People must always remember about ecological problems. 1) ... keep their planet clean. 2) ... protect endangered species of plants and animals. 3) ... dump waste into seas, lakes and rivers. 4) ... cut down a lot of trees. 5) ... destroy the animals' natural habitats. 6) ... pollute the environment. 7) ... teach their children to love nature. 8) ... think about the future of the planet.

Давай заполним пропуски, используя 'people must' или 'people must not', чтобы предложения имели смысл: 1) People must keep their planet clean. 2) People must protect endangered species of plants and animals. 3) People must not dump waste into seas, lakes and rivers. 4) People must not cut down a lot of trees. 5) People must not destroy the animals' natural habitats. 6) People must not pollute the environment. 7) People must teach their children to love nature. 8) People must think about the future of the planet.