Past Simple/Past Continuous/Past Perfect

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 ... a bag.

Choose the right form of the verb:

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

Choose the right form of the verb:

There ... a nice concert last Sunday.

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 waiting for her when she finally ... .

Choose the right form of the verb:

We ... letters the whole day yesterday.

Choose the right form of the verb:

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

Choose the right form of the verb:

He ... his cousin before.