dialogue: W: Is your mother feeling any better these days? M: Much better. She should be back home in a few days. W: That sounds like the operation was successful? M: Yeah, and the doctors say she will recover soon. W: That's wonderful. When will you be back on your job? M: I think I need at least one more week to take care of her and do some cleaning. W: Why don't you hire someone to do it? Then, you can come back to your job, and you need more free time to have a rest as well. M: Yes, thank you. I really do need it. But I'm worried about my mother. She is 72 years old. W: You are a kind and thoughtful person. Please take good care of her. M: Thank you, Mary. How about my work? W: Don't worry about it; all of us in our office can help you with it these days. I hope your mother to recover soon. M: It's very kind of you. Thank you very much.
question: What happened to the man's mother?
choice: She has just recovered. She is too old to walk. She had an operation.
answer: She had an operation.