Unit 3 Lesson 3《My Friends》习题一、基础过关 从 B 栏中选出 A 栏相对应的回答,把序号写在括号内。 A B ( ) 1.Good afternoon. A. They are carrots. ( ) 2.Clean the desk, please. B. Merry Christmas! ( ) 3.What are these? C. She’s my sister. ( ) 4. Merry Christmas! D. All right. ( ) 5.W...