单选题
A man is happy when______.
A、
he has to do what he does not enjoy doing
B、
what he enjoys doing is ignored by society
C、
he is compelled to take a job by the necessity of earning a living
D、
he feels free and important
【正确答案】
D
【答案解析】
[考核题型] 细节题
[解析] 文章在首段第二句讲到“要高兴，首先一个人必须感到自由，其次感到重要”。因此答案为D。
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