1. D) relatives
2. D) Oxford
4. C) the United Kingdom
5. B) has lost
6. B) could buy
7.. D) would go
8. C) would have written
9. B) lock
10. A) being; to have
11. D) making
12. B) reading
13. B) listening; to listen; talking
14. C) earning; to prove
15. B) going; stay