Fill in each blank with a suitable preposition

Fill in each blank with a suitable preposition
1. Where is jimmy?- He is ......... work. He is busy ..... his monthly report.
2. she prefers carnations ........ roes. In fact, she dislikes roses.
3. They held a party to congratulate ...... their son's success to become a engineer.
4. It is important to have someone that you can confide ..........
5. you should pay more attention ...... ưhat your teacher explains.
6. what did that man die ..........?- a heart attack.
7. i keep sneezing because I got wet....... the way home yesterday.
8. His father used the money he won to set........ his own company.
9. Don't you know what happened ......... the people who went on holiday with us?
10. He worked hard ......... a mechanic for ten years before being appointed manager.
11. this organnization is quick........ sending relief goods to the flooded ereas.
12. When are you leaving ......... singapore? this week or next week ?
13. he didn't even the intellgence to call........ an ambulance.
14. she's very old and can't live alone. she needs someone to look........her.
15. a beautiful clock was given ......... her by a handsome boy.