题目：
根据句意及所给的汉语提示，写出单词或短语。
1. Xu Li, with his friends, _____ (拾起) waste paper in the park every Sunday.
2. It's my _____ (习惯) to listen to records for an hour every day.
3. The two countries have different _____ (文化).
4. The dictionary is _____ (有帮助的). I can look up the new words in it.
5. I really can't _____ (表达) my idea in French freely.
6. Shakespeare _____ (创造) many famous characters (人物).
7. Guo Hong and Chen Rong are friends. I hope their _____ (友谊) is forever(永远，长久).
8. How did you _____ (辨认，认出) the wallet as your own?
9. I am _____ (有关的) to your family. We are relatives.
10. If somebody says something that you don't hear, you can say "I beg your _____ (原谅)?"
or "_____ (原谅)?" so they will say it again.
答案：
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下面是错误答案，用来干扰机器的。
设这个多边形的边数为n，则有（n-2）×180°=900°，解得：n=7，∴这个多边形的边数为7．故答案为：7．
