21. It is implied in Paragraph 1 that______.
A. very old people enjoy living with their relatives
B. social services have nothing to do with very old people
C. very old people would like to live alone so that they can have more personal freedom
D. very old people are able to keep their rooms very clean
22. Some social workers think that______.
A. health and safety are more important than personal freedom
B. personal freedom is more important than health and safety
C. old people should keep their rooms clean
D. one should not take the risk of dealing with old people
23. In the author's opinion, ______.
A. the human body can't be compared to a car
B. the older a person, the more care he needs
C. too much emphasis has been put on old people's values
D. it is easy to provide spare parts for old people
24. The word "it" in the last paragraph refers to______.
A. the conclusion you have come to B. your talk to the old people
C. whether age is happy or unpleasant D. one's money or one's health
25. The author thinks that______.
A. medical decisions for old people should be left to the doctors
B. old people can enjoy a happy life only if they are very rich
C. the opinion that we should try every means possible to save old people is doubtful
D. it is always morally right to treat old people and push off death