People began to use fire millions of years ago.对划线部分提问划线部分：millions of years ago

People began to use fire millions of years ago.对划线部分提问划线部分：millions of years ago
People began to use fire millions of years ago.对划线部分提问
划线部分：millions of years ago

People began to use fire millions of years ago.对划线部分提问划线部分：millions of years ago
When did people begin to use fire?
祝你学习进步,更上一层楼!(*^__^*)
有不会的可以再问我:）

When did people begin to use fire?

When did people begin to use fire?
O(∩_∩)O祝你学习开心进步快乐！！！
请采纳

When did people begin to use fire?

when did people begin to use fire?

When did people begin to use fire?

When did people begin to use fire?
人们什么时候开始用火？
希望对你有帮助哦，不懂再问，(*^__^*) 嘻嘻……

when did people begin to use fire