— Why did he say so?
— Sorry, I don’t understand he has said means.
A. what all
B. that all
C. all what
D. that
网友回答
(答案→)A. what all
B. that all
C. all what
D. that
解析：句意 ——他为什么这么说?——对不起,我不明白他说的话是什么意思。 句中what引导宾语从句，做means的宾语，宾语从句的主语是all he has said（=all that he has said）。故选A。
考点: 考查宾语从句的用法。