The road conditions there turned out to be very good, ____ was more than we could expect
A.itB.whatC.whichD.that在线课程C
解析：
题意为：“那里的路况出奇的好，比我们所预料的好的多。”分析从句的结构：which是主语，was是谓语。比较状语从句的结构：we是主语，could expect是谓语，其宾语被省略。通过分析从句的结构可以看出，句子中缺主语，所以选择关系代词which。