英语选择.-------twice ,the postman refused to deliver our letter

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英语选择.-------twice ,the postman refused to deliver our letters unless we changed our dog.
------twice ,the postman refused to deliver our letters unless we changed our dog.
A.Being bitten
B.Bitten
C.Having bitten
D.To be bitten
请详细解释一下正确答案,以及C选项 (如果是变成Having been bitten可以算是正确吗）
谢咯~
Having said that she didn't do a good job , I don't think I am abler than her.
这一句虽然没有被动，但是分析一下“Having said”。
ps:14 和？说的似乎都有道理哦，14能再找些例句或这说明下吗，可以加分。
？或者其他人有不同看法么。

选B没错
句意是被咬了两次后,邮递员拒绝再来给我们送信,除非没有那条狗.
Bitten,非谓语动词（过去分词）说明被动之意.已经被咬了
用Having been bitten 也是对的现在完成进行时的被动态作状语强调该动作发生在谓语动词所示动词之前句子强调之前被咬了两次这个邮递员再也不.是对的

英语选择.-------twice ,the postman refused to deliver our letter Bitten twice,the Postman refused to deliver our letters unle ---------- twice,the postman refused to deliver our letters （）twice ,the Postman refused to deliver our letters unless 1.___ twice,the postman refused to deliver our letters unles ____twice,the postman refused to deliver our letters unless __twice,the postman refused to deliver our letters unless we ____twice ,the postman refused to deliver our letters unless ___twice,the postman refused to deliver our letters unless w 过去分词作状语问题1.—————— twice,the postman refused to deliver our l 这个是独立主格问题?________twice,the postman refused to deliver our l （）twice,the postman refused to deliever our letters unless w