题目内容：
______ twice, the postman refused to deliver our letters unless we chained our dog up.A、 Being bitten
B、 Had been bitten
C、 Having bitten
D、 Having been bitten
参考答案：
选择题：______ twice, the postman refused to deliver our l
- 题目分类：石家庄铁道大学-大学英语III
- 题目类型：选择题
- 查看权限：VIP
A、 Being bitten
B、 Had been bitten
C、 Having bitten
D、 Having been bitten