___twice ,the postman refuse to deliver our letters unless we chained our dog up.A Having bitten B Being bittenC Bitten D To be bitten
2022-04-30 05:13:12 23次 反馈错误 加入收藏 正确率 : 100%
题目内容：
___twice ,the postman refuse to deliver our letters unless we chained our dog up.
A Having bitten B Being bitten
C Bitten D To be bitten
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