28: A. secondary B. admission C. certificate D. requirement

27: A. forget B. offer C. relate D. impress

26: A. attract B. labor C. sociable D. wildlife

25: A. study B. compare C. eastward D. frighten

24: A. invite B. happen C. finish D. follow

23: A. attention B. difficult C. romantic D. society

22: A. pressure B. achieve C. nation D. future

21: A. entertain B. similar C. carefully D. history

20: A. attract B. verbal C. signal D. social

19: A. category B. accompany C. experience D. compulsory