II. Cloze

　　There are 20 blanks in the following passage(s). For each blank are provided four choices marked A, B, C, and D. Choose the ONE that best completes the passage(s)

　　Aging is the 31 of growing old. It occurs eventually in 32 living thing provided, of course, that an illness or 33 does not kill it prematurely. The most familiar 34 signs of aging may be seen 35 old people, such as the greying of the hair and the 36 of the skin. Signs of aging in a pet dog or cat include 37 of playfulness and energy, a decline in hearing and eyesight, or even a slight greying of the 38 . Plants age too, but the signs are much 39 to detect.

　　Most body parts grow bigger and 40 , and function more efficiently 41 childhood. They reach their 42 at the time of maturity, or 43 adulthood. After that, they begin to 44 . Bones, for example, gradually become 45 and more brittle. In the aged, the joints 46 the bones also become rigid and more inflexible. This can make moving very 47 .

　　All the major organs of the body 48 signs of aging. The brain, for example, works less efficiently, and even gets smaller in size. Thinking processes of 49 sorts are slowed down. Old people often have 50 in remembering recent events.

　　(B)31. A. progress B. process C. program D. procedure

　　(C)32. A. some B. all C. every D. many

　　(A)33. A. accident B. incident C. event D. story

　　(D)34. A. toward B. inward C. onward D. outward

　　(A)35. A. in B. of C. at D. for

　　(D)36. A. reducing B. creeping C. crawling D. wrinkling

　　(C)37. A. lost B. losing C. loss D. loosing

　　(B)38. A. jacket B. coat C. suit D. costume

　　(A)39. A. harder B. heavy C. harsh D. hurried

　　(C)40. A. great B. younger C. stronger D. powerful

　　(B)41. A. among B. during C. for D. of

　　(D)42. A. length B. mount C. hill D. peak

　　(C)43. A. late B. last C. early D. final

　　(B)44. A. deflate B. decline C. decrease D. deduce

　　(A)45. A. lighter B. smaller C. bigger D. heavier

　　(B)46. A. to B. between C. of D. with

　　(D)47. A. flexible B. easy C. playful D. painful

　　(A)48. A. show B. reveal C. detect D. allow

　　(C)49. A. every B. each C. all D. single

　　(D)50. A. trust B. suspect C. doubt D. trouble