11. He always prevents me_______ doing my duty.
a. of b. from c. with d. against
12. I write letters _______ my right hand.
a. in b. by c. with d. at
13. The war victims suffered terribly______ cold and hunger.
a. with b. from c. through d. of
14. She is absent_______ class
a. at b. from c. to d. away
15. It is very nice______ you to take so much trouble.
a. of b. to c. for d. from
16. You may write________ pencil.
a. with b. by c. in d. on
17. He congratulated me_______ winning the competition.
a. of b. on c. at d. about
18. Remember me________ your parents.
a. to b. for c. with d. about
19. Mr. Foster lives_____ 667E 76th street______ New York.
a. in/in b. at/in c. on/in d. in/on
20. We reached______ her house safe and sound.
a. at b. to
c. with d. no word is needed