You must turn off electronic devices before take-off. → Electronic devices.............................Đoạn văn41/45Rewrite the following sentences without changing their meaning. Use the given word(s) if any You must turn off electronic devices before take-off. → Electronic devices.............................Nhập câu trả lời ở đây0/3000 ký tựGiải thíchmust be turned off before take-off.