III. Error Identification

　　46. Bats are able to guide them by producing sound waves too high for us to hear.

　　A 　　　　　B 　　　　　　　　　　　　　　　　C 　　　　　　　　D

　　47. Ever since the world began, nations have difficulty in keeping peace with their

　　A 　　　　　　　B　　　　　　　　　 C 　　　　　　D

　　neighbors.

　　48. Although her severe pain, Jane came to the classes so that she wouldn’t miss

　　A 　　　　　　　　　　　　　　B 　　　　　　　　　C 　　　　　　　　D

　　anything.

　　49. The salesman told me that a good pair of glasses were supposed to last at least 3

　　A 　　　　　　　　　　　　　B　　　　　　　 C 　　　D

　　to 4 years.

　　50. Even though she looks very young, she is twice older than my 18-year-old sister.

　　A 　　　　　B 　　　　　　　　　　　　　　C 　　　　　　　　　D

　　51. I just don’t understand why his wife fusses at small things all the time.

　　A　　　　　　　　　　 B 　　　　　　　　　C 　　　　　　　　　　D

　　52. The policemen ordered that everyone left the burning building right away.

　　A 　　　　　　　　　B 　　　　　C　　　　　　　 D

　　53. If I were you, I would take that job without delay when they offered me.

　　A 　　　　　　B 　　　　　　　　　　　　C 　　　　　　　　D

　　54. Have the director and editor decided what to do next with the book?

　　A　　　　　　　　　　　　　　　　　　　 B 　　　　C 　　D

　　55. Make sure you eat well and sleep enough, don’t you?

　　A 　　　　　B 　　　　　　　　　C 　　　D

答案：
46-50 BCABC
51-55 CBBAD