Choose one of the prepositions to fill the blanks : AT - BY - FOR - IN

1. He sent a copy of his will to his bank safe keeping.
2. His house is to be sold auction.
3. Let Albert work it out, he is good figures.
4. You could tell a glance that he was no ordinary speaker.
5. Most people think the government is to blame rising unemployment.
6. Although their marriage was not happy they decided to stay together the sake of the children.
7. There has been a sharp increase house prices in recent months.
8. They began to drop out of the race one one.
9. Do you know of a cure baldness?

10. She takes great pride her work.
11. He was the sort of person who immediately made you feel ease.
12. Did she give you any reason her behaviour?
13. I'm sorry but I am not liberty to tell you any more.
14. John has got a very strange taste clothes.
15. We didn't know certain if they would come or not.
16. Think of a number. Now multiply it seven.
17. Do sit down. Mr Brown will join you a moment.