1)i039;d rather stay/to stay at home and go dance/dancing on saturday

1)i'd rather stay/to stay at home and go dance/dancing on saturday night.
2)My brother has been terrified/terrifying of rats since he was bitten by one as a child.
3)You know the staff at this hotel are/is always reaally polite and helpful.
4)Mrs.Crowder, who/whose is 60 works at leisure centre, where/when she teaches aerobics at classes which/who attract women of all ages.