46. After the terrible accident, I discovered that my ear was becoming less       .

　　A) sensible                               B) sensitive

　　C) sentimental                            D) sensational

　　47. Now the cheers and applause      in a single sustained roar.

　　A) mingled                               B) tangled

　　C) baffled                                D) huddled

　　48. Among all the public holidays, National Day seems to be the most joyful to the people of the country; on that day the whole country is       in a festival atmosphere.

　　A) trapped                                B) sunk

　　C) soaked                                D) immersed

　　49. The wooden cases must be secured by overall metal strapping so that they can be strong enough to stand rough handling during       .

　　A) transit                                B) motion

　　C) shift                                  D) traffic

　　50. Nowadays many rural people flock to the city to look for jobs on the assumption that the streets there are      with gold.

　　A) overwhelmed                          B) stocked

　　C) paved                           &n

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