1) Zhangdan has been away from Dandong for five years.
2) Zhangdan left Dandong five years ago.
3) It is&has been five years since Zhangdan left Dandong.
1) Zhangdan has been away from Dandong for five years.
2) Zhangdan left Dandong five years ago.
3) It is&has been five years since Zhangdan left Dandong.