to be 后面加什么词
问题描述：
to be 后面加什么词
She is sure to be successful.正确 ,successful是形容词,success是名词,为什么success错误不能填,to be后面加什么呢?
答
她确实是成功的,根据句意用successful.be sure to后加动原,不能直接加形容词,所以要加be.be后除了形容词,还可接名词,如：she wants to be a doctor.