$34. ____ twice, the postman refused to deliver our letters unless we changed our dog.$
Answer key
B
____ twice, the postman refus…——2009 高考英语第 34 题答案解析
2009_北京卷 (英语)
题目指纹
这道题真正考什么？
difficulty
Differentiating
2009_北京卷 (英语)
$34. ____ twice, the postman refused to deliver our letters unless we changed our dog.$
B