1) ''Why don't you put an advertisement in this local newspaper?'' They asked me.
=> They suggested that an advertisement should be put in this local newspaper
2) ''Let's not tell anyone until we are certain that the report is true,'' said Tom
=> Tom suggested that they should not tell anyone until they were certain that the report was true.
3) Ba said: '' Why don't we stop eating chicken to avoid being infected with bird flu?''
=> Ba suggested that chicken shouldn't be eaten to avoid being infected with bird flu.
4) ''Why don't you repair the eletric fan, Ba?''
=> She suggested Ba should repair the electric fan.
5) ''Why not take the garbage to recycling centers?'' said the local authorities.
=> The local authorities suggested that the garbage should be taken to recycling centers.
6) I think you'd better stay in bed today.
=> Why don't you stay in the bed today?
7) Let's discuss the plan carefully.
=> I suggested discussing the plan carfully.
8) His wife said, ''Let's have dinner after the theatre.''
=> His wife suggested that they should have dinner after the theatre.