M: I've been looking all over for you! Where did you go? Why didn't you answer your phone? ,F: I was looking for some books in the library. I had to turn my phone off there.
(A) M: You lost your phone! So bad! (B) M: I’m sorry, I don’t understand. Could you say it again? (C) M: You were not allowed to use the phone at that time because you were looking for some books in the bookstore, right? (D) M: You were not allowed to use the phone at that time because you were looking for some books in the library, right?
D