i am going to the post office you're there can you get me some stamp_-----i am going to the post offic-----_____you're there .can you get me some stamps?A for B while C as D because说明下为什么,

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i am going to the post office you're there can you get me some stamp_-----i am going to the post offic-----_____you're there .can you get me some stamps?A for B while C as D because说明下为什么,
i am going to the post office you're there can you get me some stamp
_-----i am going to the post offic
-----_____you're there .can you get me some stamps?
A for B while C as D because
说明下为什么,

i am going to the post office you're there can you get me some stamp_-----i am going to the post offic-----_____you're there .can you get me some stamps?A for B while C as D because说明下为什么,
B.
当你到达时...
while 与 when 差不多,都是当...的时候.

B
当你在那里的时候,可以为我搞些邮票吗

B
四个选项中只用BC选项是表示“当...时候”,而C选项AS是强调一瞬间发生,不具可延续性,所以B选项是正确答案

B 当你到哪的时候,你能给我弄些邮票吗?也可以填写WHEN

B while 这里说当你到了邮局时,能顺便帮我带点邮票么 强调一个状态