the one 作先行词的定语从句
问题描述：
the one 作先行词的定语从句
这里有两句话 1,That book is the one which i bought yesterday
2,That book is the one that was bought yeaterday 请问这两句话中的连接词都是唯一的吗?不是说 the one 作先行词的时候连接词只能用that 那这两句要怎么解释啊?
答
the very,the only修饰先行词时,连接词用 that,the one 的连接词不是只能用that,也可以用 which.