Nearly all the people believe confidence is the key to success.
A. interviewing
B. having interviewed
C. to interview
D. interviewed
网友回答
A. interviewing
B. having interviewed
C. to interview
(答案→)D. interviewed
解析：考查非谓语动词用法。People与interview构成被动关系，所以使用过去分词的形式表示被动关系。句意：几乎被采访的所有人都认为信心是成功的关键。