1. When were you playing football?
What were you playing yesterday at six o'clock?
Who was playing football yesterday at six o'clock?
2. When the sun was shining?
What was doing the sun?
What was shining?
3. Who was watching at us?
Whom all our friends were watching at?
4. Who was shouting something?
Could you hear what your mother was shouting?
What was doing your mother?
5. Who you wanted to be?
Who wanted to be the best?
6. What were you doing, when your teacher came?
Who stopped the game?
What did your teacher did, when he came?