Ở phần unit 7 sách giá khoa cũ Phần 6. write c, trang 62
c, Chose one of the following topics and prepare a speech for your classmates the idea in callouts may help you
+ Reducing garbage - collect plastic bags
- not keep solid waste with food waste
- put different kinds of was in different places
+ Reusing paper - have a separate wastebasket for wastepaper
- keep sheets with single printed pape for drafting
