问题
选择题
The road conditions there turned out to be very good, ___ was more than we could expect.
A．it
B．what
C．which
D．that
答案
答案：C
后部分是对前部分的补充.题意是 “那儿的路况结果很好,比我们原想的还好.”
what不是关系代词不引导定语从句，that一般不引导非限制性定语从句。it干扰性大，如果在逗号后加连词and，则选项A成立。