Speaker A: Hello, Mr. Brown. This is John Barretts secretary. Im calling to cancel his appointment with you at ten today as he is not feeling well. Speaker B: ______ A．All right, but I will be very busy tomorrow. B．I'm sorry to hear that. I think he'd better see a doctor. C．Really? That's too bad. I hope he's not seriously ill. D．Thanks for calling. It's quite all right We'll arrange some other time to meet