11. My parents will have celebrated 30 years of _______ by next week.

a. marry                  

b. married                

c. marriageable          

d. marriage

12. London is home to people of many _______ cultures.

a. diverse                

b. diversity              

c. diversify                

d. diversification

13. Some people are concerned with physical ______ when choosing a wife or husband.

a. attractive            

b. attraction            

c.attractiveness        

d.attractively

14. Mrs. Pike was so angry that she made a _______ gesture at the driver.

a. rude                    

b. rudeness              

c. rudely                    

d. rudest

15. She sent me a _______ letter thanking me for my invitation.

a. polite                  

b. politely                

c. politeness              

d. impoliteness

16. He is unhappy because of his --------------.

a. deaf                    

b. deafen                

c. deafness                

d. Deafened

17. His country has -------------- climate.

a. continent              

b. continental            

c. continence            

d. Continentally

18. She has a -------------- for pink.

a. prefer                    

b. preferential            

c. preferentially          

d. Preference

19. Computers are -------------- used in schools and universities.

a. widely                  

b. wide                      

c. widen                    

d. Width

20. I sometimes do not feel -------------- when I am at a party.

a. comfort                

b. comfortable            

c. comforted              

d. Comfortably