Задайте вопросы к предложениям (Английский)

1) It is raining
2) He is studying English
3) There is a picture on the wall
4) She is opening the door now
5)They are watching TV
6) There are many chairs in that room
7) Those cars are very cheap
There are many people in the office
9)They are working very hard
10)He is reading the newspaper now