he wants to say is he missed the bus.A. That whatB. All whatC. What thatD. All what

问题补充：

he wants to say is he missed the bus.

A. That, what

B. All, what

C. What, that

D. All what, what

答案：

A. That, what

B. All, what

(答案→)C. What, that

D. All what, what

解析：考查主语从句和表语从句。第一空是主语从句，从句中he wants to say后缺少宾语应用what，第二空表语从句不缺少成分用that，句意：他想说的就是他错过了公交车，所以选C。