làm giúp mình ----- Nội dung dịch tự động từ ảnh ----- Câu 20: . Choose the sentence (A, B, C or D) that is closest in meaning to the root sentence Stop talking or you won’t understand the lesson. A. If you don’t stop talking, you wouldn't understand the lesson. B. If you hadn't stopped talking, you wouldn't have understood the lesson. C. If you don't stop talking, you won't understand the lesson. D.If you hadn't stopped talking, you wouldn't understand the lesson.