【单选题】W: Excuse me, sir. May I have a word with you? M: Sure. What can I do for you? W: It’s about the slippery floor. People will fall and get injured. M: You’re right. I’ll put a warning sign afte...
【单选题】The dialogue is about ______. W: Excuse me, sir. May I have a word with you? M: Sure. What can I do for you? W: It’s about the slippery floor. People will fall and get injured. M: You’re right. I’ll p...