作业帮By 2025,scientists predict the world will have 7.8billion people.变成一般疑问句!
来源：学生作业帮助网 编辑：作业帮 时间：2024/06/25 22:24:21
By 2025,scientists predict the world will have 7.8billion people.变成一般疑问句!
Does scientists predict the world will have 7.8 billion people by 2025?
俊狼猎英 不懂追问!