单选题 More than 790,000 youths were reported to have ______ the National Master's Entrance Examination last year.

【正确答案】 D
【答案解析】[试题分析] 动词短语辨析题。
[详细解答] sit on：(使)坐在……上：拖延，搁下，压下；sit up：坐起来，坐直；熬夜，不睡；sit in: 参加静坐罢工或示威；sit for：参加考试，应试。