No one but the seven-year-old boy saw the accident.Đoạn văn37/40No one but the seven-year-old boy saw the accident.Only the seven-year-old boy saw the accident.No one at all saw the seven-year-old boy's accident.The seven-year-old boy saw no one in the accident.No one in the accident saw the seven-year-old boyGiải thíchĐáp án A