1. Did Peter help the pupils to translate the text?, Who did help the students to translate the text?, Did Peter or Any helped the pupils to translate the text?, Did Peter help the pupils to translate the text, didn't he?
2. Did mother ask Mary to wash the plates?, Who did mother ask to wash the plates?, Did mother ask Mary or John to wash the plates?, Did mother ask Mary to wash the plates, didn't she?
3.Does my friend write a letter to his sister ?,Who does my friend write a letter to?, Does my friend write a letter to his sister or to his brother?, Does my friend write a letter to his sister doesn't he ?
4.Did Jane take3 books from the library? Who did take3 books from the library?, Did Jane take 3 or 5 books from the library?, Did Jane take3 books from the library, didn't she?
5. Do his cousins live in Moscow?, Who does live in Moscow?, Do his cousins or nephews live in Moscow?Do his cousins live in Moscow, don't they?
6. Will our grandfather and grandmother come tomorrow?, Who will come tomorrow?, Will our grandfather and grandmother come today or tomorrow ?Will our grandfather and grandmother come tomorrow, won't they?
7.Does Mary work in a shop? Where does Mary work in?, Does Mary work in a shop or in a drug store? Does Mary work in a shop, doesn't she?