The train departed from Lagos-Nigeria's largest city-every Friday at noon.When we arrived at th

阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项。
The train departed from Lagos-Nigeria's largest city-every Friday at noon.When we arrived at the station at 9 a.m.,the ticket lines were already___21___.
When the ___22___ began,passengers sitting everywhere appeared ___23___to see Nigeria by train.The ___24___cost between$12 and$30."It's cheaper than the bus and much safer than travelling on the ___25___,” said Aisha Muhammad Shuaib, a passenger sitting next to me."I'm ___26___ the bad road.You know, I once went from Kano to Lagos,I took the same bus with armed robbers. You can ___27___? Eight armed robbers were on the bus when we were heading to Lagos!"
As we made our way out of town,passengers watched the hot southern countryside ___28___. The train usually moved much slower than the promised speed of 50 kilometers an hour. ___29___At every station-stop,locals cried noisily to sell sodas, bags of water, nuts and fruit. By nightfall we were____30____in the south.
The next morning the____31____ changed, and we arrived in the dry north. Despite the progress, the atmosphere ____32____in the economy cars.At every stop overnight,more and more passengers got on.Some of us had been ____33____ for the past five or eight hours.
As the day wore on,it only got. ____34____ By afternoon,the train was so.____35____ that every bit of floor space was taken and ____36____ was even piled in bathrooms.
We reached Kaduna around 6 o'clock.Security workers: ____37____ us we were now in one of the most dangerous regions known for ____38____and we had to be on our toes.
After 37 and a half hours,around 1:30 in the morning,the train finally rolled into the dark Kano train station.The ____39____ passengers got off the train and continued to hit the road. Back on the train, all staff ____40____ for the ride back across Nigeria. If something is worthwhile, it is enjoyable or useful, and worth the time, money, or effort that is spent on it.
21. A. strange B. attractive C. serious D. thick
22. A. ceremony B. program C. journey D. service
23. A. lucky B. confident C. eager D. content
24. A. lunch B. ticket C. seat D. accommodation
25. A. roads B. flights C. carriers D. camels
26. A. exploring B. enjoying C. fearing D. constructing
27. A. shout B. escape C. rise D. imagine
28. A. burst in B. go over C. pass by.. D. end up:
29. A. maximum B. comfortable C. theoretical D. assumed
30. A. suddenly B. still C. certainly D. thus
31. A. direction B. climate C. destination D. scenery
32. A. darkened B. simplified C. lost D. concentrated
33. A. walking B. standing C. sleeping D. quarreling
34. A. colder B. faster C. wilder D. worse
35. A. packed B. quiet C. precious D. elegant
36. A. furniture B. equipment C. luggage D. food
37. A. advised B. warned C. frightened D. persuaded
38. A. tourism B. disasters C. history D. violence
39. A. exhausted B. scared C. optimistic D. nervous
40. A. longed B. prepared C. searched D. applied
【答案】21. D    22. C    23. C    24. B    25. A    26. C    27. D    28. C    29. A    30. B    31. D    32. A    33. B    34. D    35. A    36. C    37. B    38. D    39. A    40. B
【解析】