This book seems interesting 同义句 This book seems [ ] [ ] interesting

This book seems [ to] [be ] interesting.
即：seem后面接形容词或不定式都可以,根据意思决定用什么,或两者皆可.So 该写什么已经写给你了，就是：This book seems to be interesting.形容词的不定式形式就是to be +形容词。