13. A. easy B. hard C. interesting D. simple
12. A. little B. many C. much D. few
11. A. looked B. felt C. seemed D. sounded
10. A. but B. however C. though D. whatever
9. A. on B. through C. down D. out
8. A. finished B. stopped C. kept D. went
7. A. hand B finger C. heart D mind
6. A. never B. often C. ever D. even
5. A. teacher B. students C. headmaster D. inspector
4. A. whether B. how C. why D. that