Как сделать придложения they (go) to the theatre last week в past simple or present perfect

1. Look at these children: they are skating very well. 2. Did you  skate last Sunday? — Yes, we were skating the whole day last Sunday. We will skate again next Sunday. 3. My brother can skate very well. He  skates every Sunday. 4. What are you doing now? — I am washing the dishes. 5. What were you  doing at three o'clock yesterday? — I was having dinner. 6. Are you  having dinner now? 7. Where does your brother  work? — He  works at an institute. 8. Were your grandmother  sleeping when you came home yesterday? 9. What will your brother  do tomorrow? 10. I did not go to the shop yesterday. I will go to the shop tomorrow. 11. Where were Kate  going when you  met her yesterday? 12. Every day the boss enters the office at nine o'clock. 13. Yesterday the boss  entered the office at half past nine. 14. When will the secretary  come tomorrow? 15. At six o'clock yesterday we were listening to a very interesting lecture. 16. When I  entered the office, the secretary was typing some letters. 17. My friend rang me up at eight o'clock yesterday.

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