I don't know what to choose for the fashion show为什麽用to choose

I don't know what to choose for the fashion show为什麽用to choose
I don't know what to choose for the fashion show为什麽用to choose

I don't know what to choose for the fashion show为什麽用to choose
疑问词+ 动词不定式,所以用 what to do 结构
类似的还有：Can you teach me how to use the internet
不明白的再问哟,请及时采纳,多谢!

因为shoose是动词啊

动词不定式与疑问词连用，WHAT 作CHOOSE 的宾语