I am glad you have come back from Beijing.Please tell me how long you ____ there.A)have stayedB)had stayedC)have been staying D)stayed请说明原因,

分类: 作业答案 • 2022-04-13 20:15:42

问题描述：

I am glad you have come back from Beijing.Please tell me how long you ____ there.
A)have stayed
B)had stayed
C)have been staying
D)stayed
请说明原因,

答