ai điền vào chỗ trống đc ko ? : ----- Nội dung dịch tự động từ ảnh ----- 1 (0.25 điểm) What does the sign say? AWARNING SWIM AT YOUR OWN RISK NO LIFEGUARD O ON DUTY Beach closed for swimming. It's not dangerous to swim here. You can swim here but it may be dangerous. Swimming is prohibited here.