题目内容：

阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。

Festivals have a wide range of 1.(origin). However, no matter how different they seem, the spirit of 2.(share) joy, gratitude, love is common. Of all the 3.(tradition) festivals, the harvest festival is one of the most popular festivals, which takes place after all the crops 4. (gather) in. At the same time, though customs play a significant role in festivals, they can change over time. For example, some Chinese cities no longer allow people 5. (light) firecrackers, as they can increase air pollution. These days, festivals are becoming more and more commercial, with businesses 6. (take) advantage of celebrations. Online shopping websites and social media have made 7. much easier to spend more on gifts. People have divided opinions on it. All in all, festivals reflect people’s beliefs and attitudes 8. life. They are occasions 9. let us spend time with family. If you study festivals 10.careful), you will find different cultures have a lot in common.