Какими личными местоимениями можно заменить следующие существительные? (he/she/it/they)kate, my parents, aunt, jacob, car, sister, cousins, two chairs, chair, the queen, ann, brother, uncle, bill, cat, table, my father, my house, cars, balls, computer.

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I would like to tell you about my best friend.  Her name is Lena. We know each other for many years. She is my next door neighbor. I always recognize her among many others. She is a girl of average height with a long curly blond hair.  Lena has a sporty constitution. She is lean and slender build. Her skin has a cream-white color. Her face is oval. Lena has a straight nose and thick protruding lips. Her face is covered with freckles. Lena’s eyes are very beautiful. They are of deep green color, which reminds emerald. Her face is always kind and well-wishing . She often smiles and she’s always optimistic.  Lena is very pretty girl and a true friend.

1. Have you seen Luna?
2. I haven't seen her.
3. But I have heard her speech.
4. I wish I had stayed at home.
5. The children will have grown up, and the parents will move to a new house.
6. He has done his homework.
7. He has been walking with his friends today at 4 p.m..
8. Have been doing your homework for several hours?
9. I've been in the Zoo today.
10. I have seen Justin Bieber several times there, but I still doubt it was him.
11. He thought that Sarah had been to school today.
12. He thought that Sarah had already done her homework by 5 p. m..
13. I have just read it in the Daily Prophet.
14. It has been such a fun day.
15. Have you told her that she'd been invited to Slughorn's Christmas party?