China has ordered a ban on advertisements during television drama programs. An ad will not be allowed to run in the middle of a program running 45 minutes in length, beginning on January 1st. The authorities say ________ ban is important for the growth of culture. Television stations say this will cause ________ a loss in revenue（收入）. Most audience feel glad ________finally such a policy has been carried out. ________some still doubt whether this is an effective policy or not. Simply banning TV stations from broadcasting inserted advertisements is no use. Even if SARFT completely banned domestic TV stations from broadcasting advertisements, they could still implant advertisements into TV shows. Why can China not learn some lessons from western TV channels such ________ NHK and BBC? They are public channels ________any advertisements. But they charge their viewers. In China, TV viewers only need to pay cable Television fees, ________ is rather low. And TV stations make profits through broadcasting advertisements. If we can learn some lesson from western countries, ________will be rather helpful to the final solution of the conflict between audience and TV stations.