F: Your room is in such a mess. When was the last time you cleaned it? ,M: It was when Linda came over last month. She's been so helpful that I simply can't do without her.
(A) F: I didn’t hear you. Please could you tell me again? (B) F: Let me clean the room. (C) F: Your room is so clean. I'm surprised. (D) F: It's a long time since you cleaned your room last month.
A