1. (2021六上·龙华期末) 找朋友，请在句子中找出一个含有与例词划线部分相同发音的单词。

例如：arm       My school is near the park.         park

1. （1） tooth       I think these animals are in danger.     
3. （2） sweet       Can you see any birds?         
5. （3） teacher       Please give me a piece of paper.       
7. （4） blue        Sally wants to have a new ruler.       
9. （5） other       His son is four years old this year.