1. Mr. Brown sacked the assistant **who had a terrible argument with her**.
2. I admire people **who can speak more than one language**.
3. He is the journalist **whose article was on the front page of The Times**.
4. My best friend, **whose brother sat next to you in 3rd grade**, wants to become an English teacher.
5. This is the spacecraft **that has revolutionized the world**.
6. The telephone is an invention **that has revolutionized the world**.
7. The historical castle, **which was rebuilt after the war**, contains the city museum.
8. The bakery **where we usually buy our bread** has closed down.
9. December 25th is the day **when children in Great Britain get their Christmas presents then**.
10. Next Saturday I'm going to visit my Aunty Sheila, **who I like very much**.
11. The award was given to Sara, **whose short story impressed the judges**.
12. The horror film was the reason **why I couldn't sleep last night**.
13. The police searched the vehicle **where the gun was found**.
14. Do you remember the girl **with whom he had a terrible argument**?
15. His mid-teens were the time **when he first became interested in politics**.