Exercise 1
1. Tom designed this clothing last year.
2. The invention of the paper clip was really useful.
3. He discovered the hidden treasure.
4. My sister saw an interesting exhibition in the National Museum yesterday.
5. I need some help. I can't install the new software on my computer.
6. That book inspired the creation of our music club.
Exercise 2
1. The house is being bought by him.
2. A lot of photos are taken by her every day.
3. Their rooms aren't cleaned by them often.
4. Was the room painted by him?
5. The cars aren't produced in her town.
6. The album wasn't created by me.
7. Are a lot of fish eaten by your cat?
