问题
选择题
It doesn’t matter how many times you fail；_________ matters is how many times you stand up and try again．
A．which
B．that
C．who
D．what
答案
D
题目分析：句意:你失败多少次没有关系，有关系的是你多少次站起来再次尝试。这里是主语从句，主语从句中缺少主语，用what连接，所以选D。