It's not necessary ____ the same.A、be B、is C、 to be D、being选什么?Why?

问题描述:

It's not necessary ____ the same.A、be B、is C、 to be D、being
选什么?Why?

C. to be
It's (not) necessary (for sb) to do sth

It's not necessary ____ the same.A、be B、is C、 to be D、being
选C
【It's +形容词+to do sth】是固定用法