I think ___a teacher is great\A be B to be C to being D for being

I think ___a teacher is great\A be B to be C to being D for being
I think ___a teacher is great\
A be B to be C to being D for being

I think ___a teacher is great\A be B to be C to being D for being
I think （B to be） a teacher is great.
我认为当一名老师非常好.
空格中要填宾语从句的主语.在四项中,只有不定式to do的形式可以作主语.

参考答案：I think _B to be __a teacher is great\ B to be 正确，解析所填部分是宾语从句的主语，所以不定式B to be可以做此成分。祝你学习进步，望采纳! 谢谢！

所填部分是宾语从句的主语，所以不定式B to be可以做此成分