阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
1. With butterflies in my stomach, I breathed_________ (deep).
2. If harmless actions are the opposite of harmful actions, why are shameless and harmful_________ (behave) the same?
3. Grandfather and father, _________ (seat) at the table, are playing chess.
4. Last spring in Yellowstone, I followed a path_____ took me through a dark forest.
5. When my English teacher _______ (step) into the classroom, I was surprised to see the same man I had met earlier.
6. The flat terraces catch the rainwater and prevent the soil from _________ (wash) away.
7. Many people enjoy herbal tea because it can have a positive effect ______ energy levels.
8. Not only can you post specific questions, but you can also_________ (broad) your knowledge by reading posts from other English learners around the world.
9. People say that one man’s meat is another man’s poison, _________ I feel at home with food from both my cultures.
10. I hope my children and their children will still value our_________ (memory) of preparing the dinner together.