来自付立政的问题
themotherdidntknowwho___forthebrokenglass为什么用toblame而不是istoblame?
themotherdidntknowwho___forthebrokenglass
为什么用toblame而不是istoblame?


themotherdidntknowwho___forthebrokenglass为什么用toblame而不是istoblame?
themotherdidntknowwho___forthebrokenglass
为什么用toblame而不是istoblame?
这是带疑问代词的不定式作宾语相当于一个宾语从句=whoistoblame
who是不定式的宾语
所以用whoistoblame也对