根据句意和提示以适当形式填写单词。

1. It's important to protect the ______ (地球).

2. — How can I get to the airport?

    — Sorry. I don't know. I'm just a ______  here.

3. He walked so ______ (慢) that he fell behind.

4. I'd like to have a vocation in a ______  mountain village.

5. I dream someday I can ______  a wonderful trip to Australia.

6. Bob is used to reading d newspaper or a ______  while waiting for a bus.

7. Listening to light music makes me feel ______ (放松的).

8. The soldiers are working hard on improving the living ______  of the people in disaster.