giúp mình với ạaa ----- Nội dung dịch tự động từ ảnh ----- Mark the letter A, B, C, or D to indicate the correct answer to the following question. Many years ago, most of people in Ha Noi cycled or walked, so there not many accidents. (Chỉ được chọn 1 đáp án) A. O are B. O weren't C. O were D. O was
