Jane had baked a cake by 6 o`clock.
Jane and Nick had done the shopping by 6 o`clock.
Jane had taken the dog for a walk by 6 o`clock.
Nick had hung a picture by 6 o`clock.
Jane had rescued a fox by 6 o`clock.
Jane and Nick had watched a film by 6 o`clock.
Jane had looked throught the magazine by 6 o`clock.