I just wonder that makes him so excited.A. why it doesB. what he doesC. how it isD. wha

问题补充：

I just wonder that makes him so excited.

A. why it does

B. what he does

C. how it is

D. what it is

答案：

A. why it does

B. what he does

C. how it is

(答案→)D. what it is

解析：本题考查强调句型，强调的是宾语从句的引导词what,what在宾语从句中作主语。