THE CHEMICAL………..FROM CARS AND FACTORIES MAKE THE AIR, WATER AND SOI...

6. - KIEM TRA 1 TIET 11 HK2
KIEM TRA 1 TIET 11 HK2

6.The chemical………..from cars and factories make the air, water and soil dangerously dirty.

a.pollute b.pollution c.pollutants d.polluted