1. A.They were all good at cooking.
2. D.His parents' friends.
3. C.No one of the group ate it.
4. D.It was rather disappointing.
5. B.The business success of the woman's shop.
6. C.Keep down its expenses.
7. A.They are sold at lower prices than in other shops.
8. D.To maintain friendly relationships with other shops.
9. B.They deliver pollutants from the ocean to their nesting sites.
10. C.They travel as far as 400 kilometers in search of food.
11. A.They were carried by the wind.
12. C.The harm Arctic seabirds may cause to humans.
13. A.It has decreased.
14. B.It is now the second leading cause of death for centenarians.
15. C.Their minds fall before their bodies do.
16. A.They are focused more on attraction than love.
17. C.It is not love if you don't wish to maintain the relationship.
18. D.How the relationship is to be defined if any one is missing.
19. A.Social work as a profession.
20. B.They help enhance the well-being of the underprivileged.
21. B.They all have an academic degree in social work.
22. D.Social workers' job options and responsibilities.
23. A.To fight childhood obesity.
24. D.They impress kids more than they do adults.
25. C.Message positive behaviors at all times.