试题题干
Although he studied very hard, he failed in the entrance exams to college, （） was really a pity.
参考答案
正确答案：
试题解析
本题考查非限制性关系句中关系代词的用法。Although he studied very hard 为让步状语从句，两个逗号中间是主句，而空后还有一个系动词was，所以需要把最后一个分句变成从句。空前有逗号，所以是非限制性定语从句，且在从句中充当成分做主语，所以要选择which。
句意：虽然他学习很努力，但高考还是失利了，真是可惜。