Find the one mistake and then correct it

find the one mistake and then correct it
1. they contacted party members   from cross the nation to ask for their support.
2. this film is good family entertainment(= anything that can be enjoyed by parents and children together).
3. the minister was drummed out of office when it is discovered that he had been taking bribes.
4. ''what's the problem?''  ''it's this insurance thing. i'm really worried about it''
5.''have you written your English essay yet?''   '' of course not,  finished it last week''