i don't know which one to choose.中Iwhich one 是KNOW的宾语 ,那么to choose 是宾补还是什么成分?

问题描述:

i don't know which one to choose.中Iwhich one 是KNOW的宾语 ,那么to choose 是宾补还是什么成分?
which one 是KNOW的宾语,还是choose的宾语

这个句子里有缩写成分,完整的句子应该是I don't know which one I am going to choose.这样看来to choose只能是宾语从句里的谓语了.