Exercise 4:Complete the sentences with the appropriate prepositions.1. That's very kind.............you to do so.
2.I am disappointed......my younger's exam result. 
3.What was the reason the delay?
4.What time we get there will depend...how bad the traffic is.
5.I really didn't do it..purpose,but I know she thinks I did.
6.Are you coming..........car or.........foot?
8. Are you good.....repairing cars?
7.It was the most frightening experience...... my life.