I don't know what made him laugh so e_________(首字母填空)

I don't know what made him laugh so e_________(首字母填空)
I don't know what made him laugh so e_________(首字母填空)

I don't know what made him laugh so e_________(首字母填空)
excitedly

easily-容易

excitedly 我不知道是什么让他如此兴奋地笑
excitedly 为副词 可修饰前面的动词laugh
exciting 不行 它的意思是“令人兴奋的” 可作定语或表语 不能修饰动词
I don't know what made him show us so exciting laugh.

I don't know what made him laugh so exciting_________(首字母填空)