Choose the appropriate form for the verbs in brakets.

1. Tom usually (to catch) bus to get to shool, but today his dad (to take) himto school by car. 

2. It all (to happen) when I (to walk) home from school.

3. I (to see) a man with a large bag in his hands, who (to run) fast across the road.

4. At that moment I (to think) the man (to be) a robber.