F: Dad, I just finished my paper. Can you help me check it before I handed in? ,M: Sure, let's take a look. Sweetie, this is really good. Your ideas are so original. ,F: Thanks. ,M: I can tell you worked hard on it. ,F: I really did. I started thinking about what I wanted to say 3 weeks ago.
(A) M: Wow, you mean that you started thinking about it three days ago. (B) M: Wow, you mean that you started thinking about your exam three weeks ago. (C) M: I am really sorry, I did not catch that. Would you slow down, please? (D) M: Wow, you mean that you started thinking about it three hours ago.
C