单项选择题A. Because his arms are too fat.B. Because his muscles are not firm enough.C. Because it is an ideal way to keep physically fit.D. Because the advice is put forward by the experts.
单项选择题A. They think they should follow the current trend. B. Nursing homes are well-equipped and convenient. C. They have jobs and other commitments. D. Adult day-care centers are easily accessible.