Years ago， feeling tired and frustrated （失意）， I began to doubt

阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳答案。
　　Years ago， feeling tired and frustrated （失意）， I began to doubt whether teaching was worth it anymore. Luckily， a ridiculous （滑稽的） moment in class 16 my way out of the darkness.
　　I was teaching a chemistry lesson， and the students were 17 about working with alcohol lamps（酒精灯）. But a girl couldn’t get her wick（灯芯） to burn. She was one of the kids who always seem to be the 18 one picked for the team， who appeared to have 19 that she could never be special.
　　Normally I do not help the students with science projects， because failures are necessary for learning. Yet this was a different matter： Her wick was not as 20 as others’. I needed to 21 in.
　　The girl had tears in her eyes， and I felt ashamed of myself for ever having felt like giving up. For that one moment， the only thing that 22 to me was that this girl should have a successful experiment. She was going to go home that day with a 23 on her face. I bent over her alcohol lamp， and with a long kitchen match tried to reach the wick. I was so 24 to the match that I could feel the temperature of the fire. Finally the wick caught fire， and I looked up triumphantly （得意洋洋地）， 25 the smile on the girl’s face.
　　26 ， she took one look at me and began screaming（尖叫） in fear. I did not understand why the kids were all pointing at me until I realized that the flame had lit my hair. Several kids ran to me and 27 at my head. Talk about a dream come true—they got to hit their teacher on the head and said they were 28 him.
　　A few minutes later， all was well and I watched the kids 29 the experiment. I felt like an idiot， and yet for the first time in weeks， I felt how much I 30 about teaching. I had tried hard to help someone; though not quite well， the effort was there. From that moment， I decided to always teach like my hair was on fire.
　　（ ）16. A. raised B. cut C. repeated D. lit
　　（ ）17. A. excited B. embarrassed C. proud D. nervous
　　（ ）18. A. first B. best C. last D. very
　　（ ）19. A. accepted B. refused C. dreamed D. hoped
　　（ ）20. A. dry B. bright C. thick D. long
　　（ ）21. A. step B. keep C. stay D. turn
　　（ ）22. A. happened B. attended C. mattered D. related
　　（ ）23. A. fear B. smile C. shame D. surprise
　　（ ）24. A. easy B. close C. low D. short
　　（ ）25. A. expecting B. finding C. missing D. imagining
　　（ ）26. A. Rather B. Besides C. Still D. Instead
　（ ）27. A. looked B. shouted C. hit D. shook
　　（ ）28. A. helping B. waiting C. inviting D. hurting
　　（ ）29. A. beginning B. fighting C. continuing D. preparing
　　（ ）30. A. argued B. cared C. complained D. worried

答案：　　16～20 DACAD 21～25 ACBBA 26～30 DCACB

回答的不错