is where he gets all his money from.
A. What I can’t understand it
B. That I can’t understand
C. What I can’t understand
D. Which I can’t understand it
网友回答
A. What I can’t understand it
B. That I can’t understand
(答案→)C. What I can’t understand
D. Which I can’t understand it
解析:考查名词性从句。此题为主语从句,应用陈述句语序,句意:我不理解的就是他从哪里得到的他所有的钱。understand 后缺少宾语,所以用what,故选C。