高等继续教育 / 电子商务英语
正确率：100%
题型描述: 单选题
＿＿＿＿＿＿＿ twice, the postman refused to deliver our letters unless we chained our dog.
A.Bitten
B.Having bitten
C.To be bitten
D.Being bitten
＿＿＿＿＿＿＿ twice, the postman refused to deliver our letters unless we chained our dog.
A.Bitten
B.Having bitten
C.To be bitten
D.Being bitten
参考答案：