(First) They / have a meal (Then) Go out for a walk

а) After they had had a meal they went out for a walk.

б)After they had a meal they had gone out for a walk.

(First) Mary / visit her parents (Then) Meet some friends

а) After Mary had visited her parents she met some friends.
б)After Mary visited her parents she had met some friends.

(First) Mr Simpson / be ill for a week (Then) Go to hospital

а)After Mr Simpson had been ill for a week she went to hospital.
б)After Mr Simpson was ill for a week she had gone to hospital.

(First) Mary / call / the doctor (Then) Come back to the patient

а) After Mary had called the doctor he came back to the patient.
б)After Mary called the doctor he had come back to the patient.

(First) Ann / clean window (Then) Nick/call her
а)After Ann had cleaned window Nick called her.
б)After Ann cleaned window Nick had called her.

(First) Bob / visit / dentist (Then) go to the cinema
а)After Bob had visited dentist he went to the cinema.
б) After Bob visited dentist he had gone to the cinema.​