用方框中所给单词的适当形式填空。每词限用一次。
| actor protect twenty far hard |
We need to ______ the wild animals.
The little girl wants to be a/an _______ in the future.
Sam often gets good grades because he works _________.
Today is her _________ birthday.
I live _________ from school in our class so I take a bus to school.