Odpowiedź:
1. He works in G&Q which is an IT company set up in 2015.
2. Mark, who is usually on time, was late for school yesterday.
3. Tonight, I'm watching Britain's Got Talent which is my favorite show.
4. My mother, who has just started working for a national TV station, is a weather forecaster.
5. J.K. Rowling, whose books are popular all over the world, is visiting our school next week.
6. His book, which isn't very reliable, is a source of information for many people.