题目内容:
__________twice, the postman refused to deliver our letters unless we chained our dog.
A.Being bitten B.Bitten C.Having bitten D.To be bitten
参考答案:
答案解析:
__________twice, the postman refused to deliver our letters unless we chained our dog.
A.Being bitten B.Bitten C.Having bitten D.To be bitten