Dear Cathy,
I am Wang Ping.I am your loyal audience.I am writing to you for the purpose of expressing my sincere wishes to your programme.
Your programme is rich in content.It exhibits me a lot of knowledge I've never heard of.It really broadened my views.Meanwhile,I leart a lot about foreign cultures.What I benefited most is I gradually practised my English.The only regret is that the English speed is a little faster and it only broadcasts twice a week.
Anyhow,I really benefited a lot from your programme.I am looking forward to seeing more wonderful programmes in the future.yours sincerely,
Wang Ping