20. After the long journey, the three of them went back home

　　 A. hungry and tiredly　　　　　 B. hungry and tired

　　 C. hungrily and tiredly　　　　 D. hungrily and tired

19. American Indian __ about five percent of the U.S. population.

　 A. fill up　　　　 B. bring up　　　 C. make up　　　 　 D. set up

18. The fact that she never apologized __ a lot about what kind of person she is.

　 A. says　　　　　 　 B. talks　　　　　　 C. appears　　　 　 D. declares

17. I bought a dress for only 10 dollars in a sale; it was a real __

　 　 A. exchange　　　 B. bargain　　　 　 C. trade　　　　 　 D. business