题目内容：
If people, they move from one place to another, often in order to find work for a short time.
参考答案：
选择题：If people , they move from one place to another, o
- 题目分类：国家开放大学-开放英语4
- 题目类型：选择题
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, they move from one place to another, often in order to find work for a short time.