ПОМОГИТЕ, ПОЖАЛУЙСТА, СДЕЛАТЬ АНГЛИЙСКИЙ!!!!4. Use the Past Indefinite or the Present

ПОМОГИТЕ, ПОЖАЛУЙСТА, СДЕЛАТЬ Британский!!!!
4. Use the Past Indefinite or the Present Perfect instead of the infinitives in brackets:

N o t e : Remember that the Present Perfect is always associated with the present, and the Past Indefinite refers the action to some past moment.

1. It is half past eight and you (not to do) your morning exercises yet. 2.1 (to get up) with a headache today and (to decide) to walk to my office instead of taking a bus. Now I am feeling much better. 3. You (to meet) any interesting people at the holiday camp? 4. She (not to have) a holiday for two years. 5. You (to enjoy) Mary's singing? 6. Where you (to buy) these lovely gloves? 7. Where she (to go)? Maybe she is in the lab? No, I just (to be) there. It's locked. 8. Why you (to shut) your book? Please open it again on page ten. 9.1 am sorry. What you (to say), Mr. Hartley? 10. His face seems familiar to me. When and where I (to see) him? 11.1 hear you just (to get) married. When the ceremony (to take place)? 12. Old George (not to be) here for years! 13. You (to read) "The Man of Property"? I (to begin) the book last week and just (to finish) it. 14. A few months ago they (to pull) down some old houses in our street and (to begin) to build a new block of flats. 15. Do you remember my name, or you (to forget) it? 16. When I (to call) on him I (to find) that he (to be) out. 17. His first question to the girl (to be): "Where you (to see) the man?" 18. What (to be) her answer to your question? 19. Where you (to put) my umbrella? I need it. 20. He (to sit) there quietly for a while and then (to leave) unnoticed.