The number of older Americans with sleep problems is not small.（）
A. Right
B. Wrong
C. Not mentioned
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12（）
A. burden
B. penalty
C. suffering
D. difficulty
Conversation 2 10（）
A. 9am.
B. 10am.
C. 3pm.
D. 2pm.
7（）
A. run
B. reduce
C. take
D. regard
Depression in older people is strongly linked with （）
A. a character flaw
B. normal sadness and grief
C. a definite possibility
D. dependency and disability
E. a significant risk factor
F. unrecognized and untreated depression
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