Rewrite the sentences in the Passive voice.
Model: Somebody robbed the house last year. — The house was robbed last year. When did they rob the house? — When was the house robbed?
1. Somebody lost the keys in the garden.
2. Somebody will send an e-mail tomorrow.
3. Somebody has borrowed this book.
4. They will charge a fine.
5. They make phone calls every day.
6. When did they publish the book?
7. What did they use to make pizza?