câu 23 Recycling can help control ___eviromental___ pollution to a great deal. (Environment)
→ trước danh từ là tính từ
câu 24 These bags are ___useful____. They can be used many times. (Use)
→ sau tobe lat tính từ: useful (adj): hữu ích
câu 25 I think that the talk show was both informative and ____educative____. (Education)
→ educative (adj): giáo dục
