F: Oh dear, I have locked the key in my room again. How I wish I could remember it. ,M: Well, don't worry, These things happen.
(A) F: Yes, People always forget the keys. But I locked them in my room too many times. (B) F: Yes, it's easy to forget the keys, I locked them in my draw. (C) F: Yes, People always make the same mistakes. But this is my first time to lock my keys in the draw. (D) F: I’m sorry, I don’t understand. Could you say it again?
A