2
1. The cakes are being made by Karen.
2. The main course was served by the waiters when we arrived.
3
1. I enjoy exercising because it keeps me healthy and fit.
2. In my opinion the best thing about being a doctor is being able to help other people, and the worst thing is how long doctors have to work (even two or three shifts).
3. I don't like the watch my weight because it makes me anxious.
4. To prevent pollution I never litter and pick up trash other people left in public spaces like parks.
5. I prefer spending time in the mountains because I love hiking.
