句型：Look out! / Watch out! — 英语填空题
题目
选择合适的短语补全句子，将答案写在横线上。（每个短语限用一次）：Look out! / Watch out! / Look out of
① Don't ___ the window on the bus. It's dangerous.
② W_____! The floor is wet. You may fall.
③ ___! A car is coming. Stop and wait.