B. which C. whom D.who\r) 8. A. leave B. leaves C. left D. was leaving\r) 9. A. and B. but C. as D. or\r) l 0. A. teach B. taught C. teaching D. to teach\r) 11. A. If B. Although C. When D. Because\r) 12. A. any B. little C. few D. some\r) 13. A. sent B. was sent C. has sent D. was sending\r) 14. A. hard B. harder C. hardest D. the hardest\r) 15. A. at B. in C. on D. by\r答案: BCCAD BDCAD BDBAC