PEOPLE ARE DESTROYING THE AIR BY ADDING ____ TO IT. A. POLLUTION B...

18. - File thứ 4: de_kiem_tra_lop_11-_sach_cu-_u8-9-10_311201817
File thứ 4: de_kiem_tra_lop_11-_sach_cu-_u8-9-10_311201817
18. People are destroying the air by adding ____ to it. A. pollution B. polluted C. pollutants D. polluters