1. I was play football when she called me.

=>playing

S+ was/were+ Ving+ when+ S+ Vqkđ

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

=> Did

yesterday=> qkđ: Did+ S+ V?

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

=> did

qkđ: wh-words+ Did+ S+ V?

4. Where did you went last Sunday?

=> go

last Sunday=> qkđ: wh-words+ Did+ S+ V?

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

=> sleeping

qktd: S+ was/were+ Ving

6. He got up early and have breakfast with his family yesterday morning.

=> had

yesterday morning=> qkđ: S+ Ved/cột 2

7. She didn't broke the flower vase. Tom did.

=> break

qkđ: S+ didn't V

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

=> went

Last week=> qkđ: S+ Ved/cột 2

9. While I am listening to music, I heard the doorbell.

=> was

While S+ was/were+ Ving,+ S+ Vqkđ

10. Peter turn on the TV, but nothing happened.

=> turned

qkđ: S+ Ved/cột 2