Too many factories dispose ……………… their waste by pumping it into rivers and the sea. A. out B. of C. away D. off
Giải thích
Đáp án B
Dispose of St: vứt bỏ cái gì = throw out/away= give st away
Đáp án B
Dispose of St: vứt bỏ cái gì = throw out/away= give st away