He has__the army for ten years and is now an officer.A.gone into B.joined in C.been in D.come into请问4个选项表示什么?B为什么不行?

分类: 作业答案 • 2022-06-09 11:54:42

问题描述：

He has__the army for ten years and is now an officer.A.gone into B.joined in C.been in D.come into
请问4个选项表示什么?B为什么不行?

答