ĐIền mỗi chỗ trống 1 giới từ thích hợp:
1.Where does he do the pollution come ______
2.What does he do ___ waste food
3.What are doing_____ the environment
4.Which _______ these things do factories
5.People collect waste food and feet it _____ pigs
6.You should put trash ____ the word
7. The population _____ the world is growing
8. Don't throw empty bottles and cans ___ the street
Loga
Sinh Học lớp 12
