一、1、that/which 2、that/which 3、who/that 4、who/that 5、who/that 二、12345DDBBB 三、1、that help me relax 2、that, sing along with 3、prefers, who, different kind

一、1、that/which 2、that/which 3、who/that 4、who/that 5、who/that 二、12345DDBBB 三、1、that help me relax 2、that, sing along with 3、prefers, who, different kind