Although my grandfather is in his eighties, he is still as as a young man and hates sitting around doing nothing all day.
A. enthusiastic
B. intelligent
C. energetic
D. sensitive
网友回答
A. enthusiastic
B. intelligent
(答案→)C. energetic
D. sensitive
解析：A：热情的；B：聪明的；C精力充沛的；D敏感的。