定语从句:1、This book is___I once read.2、This is the book___I once read.原因好么
问题描述:
定语从句:1、This book is___I once read.2、This is the book___I once read.原因好么
答
定语从句:1、This book is___I once read.2、This is the book___I once read.原因好么