【正文】
possible B. possible C. important D. lucky 13. A. sends B. spares C. leaves D. takes 14. A. on B. office C. business D. off 15. A. it B. which C. that D. this 16. A. interested in B. devoted to C. limited to D. troubled by 17. A. no B. all C. few D. both 18. A. decision B. plan C. conclusion D. judge 19. A. suggests B. requires C. insists D. encourages 20. A. necessary B. practical C. careful D. honest 答案: 1. D 11. A 2. A 12. B 3. C 13. C 4. B 14. D 5. A 15. A 6. A 16. C 7. C 17. B 8. B 18. A 9. C 19. B 10. D 20. B