选出不同类的单词，把序号写在括号里。
（1）A.math book B Chinese book C. teacher’s desk
（2）A. red B. yellow C. door
（3）A.storybook B. desk C. math book
（4）A.tall B. short C. computer
（5）A.fan B. pencil C. pen
你们有了新教室，你想跟同学一起去看看，你应该说
A. Let’s go and see. B. Open the door.
The children ___ on an outing.
A.is B.am C.are
---What are you doing?
---I am ____.
A.draw B.draws C.drawing
---What are ____?
---They’re birds.
A.tha B.this C.these