10. Is the United States the wealthiest country______ the world?
a. of b. in c. for d. of
11. When ______ Rome do as the Romans do.
a. with b. for c. in d. like
12. This must be done_________ any price.
a. for b. at c. in d. with
13. Your request_______ a scholarship has been taken into account.
a. for b. in c. under d. into
14. He succeeded________ getting a scholarship.
a. in b. about c. for d. on
15. Mark Twain based the story______his experience in the West.
a. on b. from c. in d. on
16. We just rested_________ short time.
a. at b. since c. for d. in
17. Don't put____ until tomorrow what you can do today.
a. away b. off c. aside d. up
18. John Harcourt was ashamed_______ his father.
a. at b. with c. of d. about
19. I prefer coffee______ tea.
a. than b. to c. from d. for
20. If you don't know the meaning of the word, look it__ in the dictionary.
a. up b. on c. after d. for