题目内容
4. Yangyang became a volunteer in one of ______ ______ ____ (最贫穷的地区)of China.
4. the poorest areas/parts
练习册系列答案
相关题目
题目内容
4. Yangyang became a volunteer in one of ______ ______ ____ (最贫穷的地区)of China.
4. the poorest areas/parts