1. (2021·临海模拟) 用方框中所给单词的适当形式填空。每词仅用一次，每空一词。

polite    unless    attend    she      hero

1. （1） We should always speak to our parents .
3. （2） My sister could read by at the age of four.
5. （3） He became a for saving an old man from the fire.
7. （4） Jerry hasn't got any hobbies, you call watching TV a hobby.
9. （5） I the graduation ceremony yesterday. It's a special time for me.