Заполните пропуски предложенными модальными глаголами needn’t, must, must, can’t, can, mustn’t People depend on the planet, on animals and plants around them. People ….. take care of the Earth. The ecology ….. become worth. We ….. save the Earth. We ….. destroy the ozone layer of the atmosphere. People ….. live without trees and plants. So we ….. find the right way to save our land, people and animals.