__________twice, the postman refused to deliver our letters unless we chained our dog.

2023-05-26

A.Being bitten
B.Bitten
C.Having bitten
D.To be bitten

参考答案:B

The postman与bite之间存在逻辑上的动宾关系,且被咬已是事实,故排除C、D两项;被咬的动作已经完成,故排除A项。