Выполните упражнение ( исправьте ошибки)

1. He asked what kind of examples she had given.
2. She asked when it would be possible to introduce the new methods.
3. He asked what field of mathematics she was concerned with.
 4. She asked me why I did not like the exhibition
 5. I asked him who had provided him with that material
 6. He asked me why I was interested in his letter
 7. She asked when he had entered that medical college
 8. He asked me why I couldn't recognize that woman
 9. I asked him what kind of computers he had there
 10. He asked in what case the room in the hostel would be given to that postgraduate

1They want to swim in the river-Do they want to swim in the river?,they want to swim in the river,don't they.
2We like to watch Tv-do we like to watch,we like to watch TV-Don't we
3they skated yesterday yesterday-did they skate yesterday?,they skated yesterday,didn't they.
4they were here-were they here?.they were here,weren't they.
5You are Russian,are they Russian,they are Russian,aren't they,
6they are happy-are they happy,they are happy,aren't they
7my granny knits every day-does my granny knit every day,my granny knits every day-doesn't she.
8my father likes to work-does my father like to work,my father likes to work-doesn't he.
9my mother is a doctor-is my mother a doctor?my mother is a doctor,isn'she.she is an economist-is she an economist,she is an economist,isn't she.
10she works in the garden,does she work in the garden.she works in the garden,doesn't she.
11he likes to works-does he like to work,he likes to work,doesn't he.
12he studied at the university,did he study at the university,или же так didn't he