你能告诉我他们离开家乡多久了 could you tell me how long -_________ _from their hometown?
问题描述：
你能告诉我他们离开家乡多久了 could you tell me how long -_________ _from their hometown?
答
Could you tell me how long they have been away from their hometown?
答
你能告诉我他们离开家乡多久了？
Could you tell me how long -_________ from their hometown?
答案：has it been since they left
答
they have been away
答
你好:
could you tell me how long ( they have been away ) from their hometown?