Past Simple/Past Continuous/Past Perfect (минулі часи)

Choose the right form of the verb:

I ... a composition when the lights went out.

Choose the right form of the verb:

When I saw him, he ...

Choose the right form of the verb:

Helen couldn't open the door because she ... her keys.

Choose the right form of the verb:

My grandfather told us about the places he ... .

Choose the right form of the verb:

Tom ... his homework by 5 o'clock yesterday.

Choose the right form of the verb:

I ... the garden while my sister ... the plants.

Choose the right form of the verb:

They were writing a test when a headmaster ... .

Choose the right form of the verb:

I could ride a bike when I ___ a kid

Choose the right form of the verb:

She ... a language courses in London last summer.

Choose the right form of the verb:

He did his homework and then ____ for a walk