Unit 9 Have you ever been to a museum
一、根据首字母或汉语提示完成下列句中所缺的单词。
1. There have been a lot of ______ （社会的）changes in the last hundred years.
2. I ______ （害怕）that she may lose her way in the forest.
3. Jack has ______ （收集）over three hundred Chinese stamps.
4. Yesterday I saw five ______ （日本人）on the street.
