选出不同类的单词：(   )

A．crayon

B．pencil

C．ball

—________ do you collect? (    )
—I collect erasers.

A．What

B．When

C．Who

(    )

A．Let’s go to the park.

B．Let’s go to school.

Read and choose（在横线上写上相应单词的编号）：
A. green    B. seesaw    C. see D. bee E. nets
A. green    B. seesaw    C. see D. bee E. nets
1. Look, the __________ can fly.
2. --- What colour is it?    --- It's __________.
3. --- Is this a __________?  --- Yes, it is.
4. The __________ are blue and yellow.
5. I can __________ the big mouse.

What are these? They are carrots. （  ）

A．

B．

C．