F: Hello, this is Kate from the Rainbow Hotel, is Jimmy at home? ,M: No, he's in the lab, but he will be back home at 4:00 o'clock.
(A) F: OK, thanks for telling me that he is doing an important experiment in the lab. (B) F: Oh, really? Just let you know that he is sleeping next to me in the Rainbow Hotel. (C) F: I know. He'll be in the lab all day long. (D) F: I didn’t hear you. Please could you tell me again?
A