Past Simple. Past Continuous. Present Continuous

Who ... (to play) the guitar when I ... (to call) you after the lesson?

I ... (to see) a squirrel yesterday when I ... (to walk) in the forest.

Who ... (to be) the girl in a red dress you ... (to dance) with when we ... (to meet) you on the Friday?

Sorry, I can`t ... (to talk) now. I ... (to drive) to a supermarket. Could I ... (to call) you back later?

What ... you (to read)? Could I have a look?

• ... they ... (to fix) their bike yeasterday? - No, I ... (to see) them repairing it at the garage half an hour ago.

Where ... you ... (to see) her for the last time?

Children ... (to play) football in the hall when a teacher suddenly ... (to appear).