Air pollution, together with littering, are causing many problems in our largeindustrial cities today. Đoạn văn47/55Air pollution, together with littering, are causing many problems in our largeindustrial cities today. A B C DNhập câu trả lời ở đây0/3000 ký tựXác nhậnGiải thíchĐáp án đúng là B (is)