【题目】Much disappointed as he is in the job interview, he still keeps his confidence.
A. to have failed B. failed
C. having failed D. failing
在线课程【答案】A
【解析】试题分析：考查动词的时态。由题目he still keeps his confidence（他仍然保持自信）可知此处强调这件事带来的结果对后面产生了影响,因此用现在完成时态，句意为尽管他面试失败很失望，但他仍然保持自信。故选A。