急,Mr Brown isn'there.He_the post office Awent to B has gone to C has been to为什么啊 has been 与 has gone有什么区别

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急,MrBrownisn''there.He_thepostofficeAwenttoBhasgonetoChasbeento为什么啊hasbeen与hasgone有什么区别急,MrBrownisn''t

急,Mr Brown isn'there.He_the post office Awent to B has gone to C has been to为什么啊 has been 与 has gone有什么区别
急,Mr Brown isn'there.He_the post office Awent to B has gone to C has been to
为什么啊 has been 与 has gone有什么区别

急,Mr Brown isn'there.He_the post office Awent to B has gone to C has been to为什么啊 has been 与 has gone有什么区别
B 去了某处
has been to 是去过某地已经回来了
has gone to 是去了某地或者在某地或者在途中反正不在说话的地方