1. (2023三下·余杭期中) 选出恰当的单词完成句子，将序号填写在横线上。

A. small B. rabbit C. grandpa D. He E. pupil

1. （1） Who's that boy? is my baby brother.
3. （2） Ann is eight years old. She is a .
5. （3） My father's father is my .
7. （4） It has long ears. It has red eyes. It is a .
9. （5） Look, the kangaroo has a head.