complete the sentences with the Past Simple,Past perfect simple,past perfect progressive of the verbs in brackets. 1 we(wait) for half an hour when the bus finally(arrive) 2 by the time the children(come)home, i already(prepare)diner 3 after they (drive)for two hours,they (realise)they were going the wrong way.

1. We were waiting for half an hour when the bus finally arrived.
2. By the time the children came, I had already prepared dinner.
3. After they were driving for two hours, they realised they were going the wrong way.