Choose the right preposition for each gap.

1.Mr Thomson will have to account ... his rude behaviour towards a client.
2.Her children are more important ... her than her career.
3.Some people are optimistic ... the future of the planet and believe we have learned valuable lessons from the past.
4.The new product will be available ... the public at the end of next week.
5. I didn’t know that broccoli is rich ... vitamin C.
6.She decided to invest a big sum of money ... real estate.
7. It was difficult for Karen to cope ... the stress of her new job, so she left the company.
8.Many patients would benefit ... the new vaccine.
9.Although she had the benefit ... university education, she decided to become a singer.
10. If you are interested ... history, a trip to Greece is a must.
11.She stared ... him in horror.
12. Her family stared ... amazement when she announced that she was getting married the following month.