I just wonder that makes you so excitedA. why it doesB. what he doesC. how it isD. what i

问题补充：

I just wonder that makes you 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：考查宾语从句，此题的宾语从句为强调句型，后应用陈述句语序，句意：我只是想知道究竟是什么使你如此兴奋。所以选D。