WE CAN'T CLEAN UP OUR ________ RIVERS AND SEAS OVERNIGHT. A. PULLUT...

2. - DE KIEM TRA 1 TIET SO 3
Tiếng Anh DE KIEM TRA 1 TIET SO 3

2. We can't clean up our ________ rivers and seas overnight.

A. pulluted B. pullution C. pollute D. polluting