Change the following sentences into yes/no question:
1. They are watching television.
2. He fell from the bed.
3. She can solve this puzzle.
4. The baby is crying.
5. We are hungry.
6. He ruined several dresses while washing.
7. We have already written some poems.
POE 8. She lost her book.
9. The dog barks at strangers.
10. Somebody threw some water on her.