Make the following interrogative
1. The teacher is explaining a grammar rule.
2. The woman is playing with a child.
3. The boys are skating.
4. I am waiting for them
5. The children are having supper.
6. It is raining.
7. I am cleaning the blackboard.
8. My sister Chris and David are getting married today.
9. I'm always thinking about her thee days.
10.Ingrid and Dorothy are giggling and whispering together.