1. play→playing

2. study→studying

3. do→doing

4. went→go

5. sleep→sleeping

6. have→had

7. broke→break

8. go→went

9. am→was

10. turn→turned

1. I was play - playing football when she called me.

2. Was you study - studying Math at 5 p.m yesterday?

3. What was - did she do while her mother was making lunch?

4. Where did you went - go last Sunday?

5. They weren't sleep - sleeping during the meeting last Monday.

6. He got up - was getting up early and have - having breakfast with his family yesterday morning.

7. She didn't broke - break any flower vase. Tom did.

8. Last week my friend and I go - went to the beach on the bus.

9. While I am - was listening to music, I heared the doorbell.

10. Peter turn - turned on the TV, but there was nothing interesting.