Unit 4 My Family Lesson 2习题一、连线。1. That’s my sister. 2. This is my grandmother. 3. That is my brother. 二、找出下列单词中不同类的一项。 ( ) 1. A. grandma B. grandpa C. family( ) 2. A. uncle B. teacher C. aunt ( ) 3. A. boy B. girl C. cousin ( ) 4. A. boy B. girl C. st...