A、She couldn’t have left her notebook in the library. B、She may have put her notebook amid the journals. C、She should have made

M: I just received an Email from one of my former classmates. I was surprised, I hadn’t heard from him for ages.
W: Well, I’ve been out of touch with most of my old friends, only one or two still drop me a line occasionally,
Q: What does the woman mean?

W: You haven’t seen a blue notebook, have you? I hope I didn’t leave it in the reading room.
M: Did you check that pile of journals you’ve borrowed from the library the other day?
Q: What is the man trying to say to the woman?