1. 英语定语从句有限制性定语从句和非限制性定语从句两种。 2. 限制性定语从句是对先行词进行限定和修饰，如果去掉会导致整个句子的意思不完整或不明确。它通常使用关系代词（如that, who, ......
1. The book that I bought yesterday is very interesting. 2. The girl who is sitting next to me is......
