Odpowiedź:
1 We used the computer which/that is in the library.
2 I know a girl whose sister creates websites.
3 That's the university where my cousin studies.
4 What's the qualification which/that you get in your last year of school?
5 She's the teacher who was at our final exams.
6 It's the company where I'm doing work experience.
Wyjaśnienie: