answer: #Person2# tells #Person1# #Person2# can speak English quite fluently and proves it by showing #Person2#'s experience.
documents: #Person1#: You would be using mainly English in this job. Do you think you can make yourself understood in English with ease?
  #Person2#: Yes, I think I speak English quite fluently. I've often explained historical places in Xi'an to foreign tourists in English. They say my English is quite good.
  #Person1#: How many years have you been learning English?
  #Person2#: Oh, more than ten years. I started learning English when I was still in a primary school from a foreign teacher.
  #Person1#: Well, perhaps that's the reason why you are so fluent in it.
  #Person2#: Certainly.