Put the verbs in brackets into the Past Perfect or the Past Perfect Continuous.

Mum was angry because she ……….(CLEAN) the house all morning when the children came in with those muddy shoes.

When we got home last night, we found out that somebody ….(BREAK) into the flat.

We ……(PLAY) tennis for half an hour when it started to rain.

When I arrived, Kate was angry. She ……..(WAIT) for me for a very long time.

When Sarah came at the party, Paul …. already ….(GO) home.