单项选择题

The fact（）he does so in so short period of time challenges explanation.

A．why
B．that
C．what
D．which

<上一题 目录 下一题>
热门 试题

单项选择题
It is very important for the strong man to know that______ strong he is, he cannot be the strongest.
A．whatever
B．whenever
C．whichever
D．however
单项选择题
I would have told him the answer had it been possible, but I ______so busy then.
A．am
B．were
C．was
D．would be
相关试题