Is he said really true?A. thatB. whatC. whyD. whether

问题补充：

Is he said really true?

A. that

B. what

C. why

D. whether

答案：

A. that

(答案→)B. what

C. why

D. whether

解析：考查名词性从句。句中what引导表语从句，在从句中作宾语。句意：他所说的确实是真的吗？