M: Hello. This is the China Telephone Company. What can I do for you? ,F: Is this the Complaints Department? ,M: Yes, it is. ,F: I want to complain about the bill I received this month. I don't think I've made that many phone calls. Have their rates gone up? There must be a mistake in your billing. ,M: Alright Madam, tell me your phone number and I'll check it for you. ,F: My number is 63513516. ,M: Thank you. Please hold on for a moment. ,F: Alright. ,M: Hello? ,F: Yes, I'm still here. ,M: Well, there doesn't seem to be any problems with your account. The billing is accurate. You must have overlooked the international call you made to Europe. ,F: Let me see. Right. I'm sorry, it's my mistake. But it is still very expensive. ,M: Well, why don't you apply for the international dial service? It's free of charge. ,F: Can I do that? ,M: Sure. You can. The rates are cheaper as you do without assistance from the operator. ,F: I see. Well, thank you very much and I'm sorry for bothering you. ,M: It's no bother at all. That's what we're here for. Thanks for calling.
(A) F: I shouldn't have turned to the assistant. I am really sorry. (B) F: I made a wrong complaint. I am really sorry. It's my fault. (C) F: I mixed up the telephone numbers so I bother you. Sorry. (D) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please?
B