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=>ANSWER: K

21 & 22. It also shows that there has been a considerable reduction in the number of elderly people who are (21)…., which means that the (22) ….involved in supporting this section of the population may be less than previously predicted.

Keywords: elderly, reduction, population

The missing word in number 21 and 22 must be an adjective and a noun, respectively.

In the seventh paragraph, the writer states that: “That represents a siginificant dropin the number of disabled old people in the population. ¼¼.slowing the trend has saved¼¼.more than $200 billion, suggesting that the greying of America‟s population may prove less of a financial burden than expected.”
So the missing words are “disabled” and “cost”.

+ a considerable reduction = a significant drop

+ elderly people = old people

+ the number of… old people in the population = the greying of America‟s population

+ predicted = expected

=>ANSWER: 21. G; 22. A

Questions 23-26: Complete each sentence with the correct ending

1. 
   Home medical aids A. May cause heart disease
   
2. 
   Regular amounts of exercise B. Can be helped by hormone treatment
   

1. 
   Feelings of control over life C. May cause rises in levels of stress hormones
   
2. 
   Feelings of loneliness D. Have cost the United States government more than $200 billion.
   
3. 
   May help prevent mental decline.
   
4. 
   May get stronger at night.
   
5. 
   Allow old people to be more independent.
   
6. 
   Can reduce stress in difficult situations.
   

1. Home medical aids

Scan this keyword to find it in paragraph 8: “The increasing self-reliance of many elderly people is probably linked to a massive increase in the use of simple home medical aids.” This means that home medical aids allow old people to be more independent.

+ independence = self-reliance