1-5 BCDCC 6-10 CACBC

　　11. longer and longer

　　12. quite difficult

　　13. children

　　14. care and attention

　　15. normal, everyday life

　　16-20 CDDAB

　　21-25 BAACB

　　26. (should)be

　　27. reasonable

　　28. proposal

　　29. are not allowed

　　30. eagerly

　　31. strength

　　32. had been produced

　　33. Taking

　　34. is

　　35. to rise

　　36-40 DBDBD

　　41-45 DBCDA

　　46. Air Conditioning System

　　47. engineering requirements

　　48. satisfactory

　　49. efficient

　　50. proposal

　　51-55 CL PD MA BK ZO

　　56. Christ Church

　　57. marked Private

　　58. picnicking

　　59. follow the advice

　　60. prevent crime

　　61-64 DCCB

　　65——