A、It’s heavy. B、It’s dull. C、It’s difficult. D、It’s great. D女士说她对这本书爱不释手，显然她认为该书很好。couldn’t put down sth．对……爱不释手。

W: I’m here for my nine o’clock appointment with Dr. Milton.
M: Why don’t you have a seat for a moment?
Q: What does the man ask the woman to do?

M: Thanks for returning the book. How did you like it?
W: I couldn’t put it down.
Q: What does the woman think of the book?