Общий
1) Did they go to Moscow some days ago?
2) Does your son play the piano?
3) Had they already translated this text (at the) last lesson?
альтернативный
1) Did they go to Moscow or to London some days ago?
2) Does your son play the piano or the guitar?
3) Had they already translated this or that text (at the) last lesson?
специальный
1) Where did they go some days ago?
2) What musical instrument does your son play?
3) What text had they already translated (at the) last lesson?
разделительный
1) They went to Moscow some days ago, didn't they?
2) Your son plays the piano, doesn't he?
3) They had already translated this text (at the) last lesson, hadn't they?