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PEOPLE ARE DESTROYING THE AIR BY ADDING ____ TO IT...
PEOPLE ARE DESTROYING THE AIR BY ADDING ____ TO IT. A. POLLUTION B...
File thứ 4: de_kiem_tra_lop_11-_sach_cu-_u8-9-10_311201817
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18. People are destroying the air by adding ____ to it. A. pollution B. polluted C. pollutants D. polluters
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File thứ 4: de_kiem_tra_lop_11-_sach_cu-_u8-9-10_311201817