根据句意和首字母提示完成下列句子。
1. Good food and e_____ help me to study better.
2. He is ill, and his i_____ makes us feel sad.
3. A lot of v_____ are visiting the Great Wall, so it is very crowded.
4. There are sixty m_____ in an hour.
5. —What's she doing for vacation? — She's b_____ her sister.
6. Don't w_____ about me, I can look after myself.
7. I often do sports so I am more a_____ than my friends.
8. Can you go to the c_____ with me? Sure, I love music.
9. Yesterday he didn't go home u_____ he cleaned the classroom.
10. I don't think d_____ are important in a friendship.
