I think _____ important to listen carefully to the teacher i
4个回答

这个句子里没有从句.

之所以选it,是因为it这里做形式宾语,用来替代:to listen carefully to the teacher in class.

原句应该是:I think (to listen carefully to the teacher in class) important.采用的结构是:sb think sth + 形容词,某人认为什么事情怎么样.这里的 (to listen carefully to the teacher in class)就是那个sth