M: Ah, where am I? ,F: Excuse me, do you need any help? ,M: I want to go to the Science Museum. But I've been lost for the past few hours, and I can't use these ticket machines.
(A) F: I’m sorry, I don’t understand. Could you say it again? (B) F: Let me help you. You can go into the Science Museum now. (C) F: I am glad that you have found the way to the Science Museum by yourself. (D) F: Sorry, I don't know where the Star Museum is. You should ask someone else.
B