Вставить подходящий Relative Pronoun (who, which, whose ....)

Посмотрим на предложения и подберем подходящие относительные местоимения.

10. A vacuum cleaner is a machine which removes dirt from carpets.
11. A librarian is a person who is in charge of a library.
12. Van Gogh was the artist who painted "The Sunflowers" and many other famous pictures.
13. This is the family whose house burned down last month.
14. Ireland is a country which I always wanted to visit.
15. Shirley is the singer of the band which sold millions of records last year.
16. Mickey Weldon is the boy who plays the drums.
17. My uncle bought a very expensive carpet which was made in Turkey.
18. Alice was the tour guide who showed us the most interesting parts of the city.
19. That man is reading a book which is about the power of the mind.
20. I talked to the girl who failed her driving test.
21. It seems that Antonio is the only person who is able to do that job.
22. My aunt moved to the south, where the climate is warmer.
23. Yesterday I received a message which was sent by somebody I don't know.
24. A journalist is a person who writes articles in newspapers and magazines.
25. The children who had been very quiet suddenly started to shout.
26. She didn't like the video which she borrowed from a friend.
27. A mechanic is a person who repairs cars and motorbikes.
28. Dictionaries are useful books which you can find the meaning of words.
29. Rodrigo has many old stamps which grandfather gave him.
30. The doctor found a lost child whose mother was looking for him.

Это заполнение пустых мест в предложениях правильными относительными местоимениями в английском языке.