$34. ____ twice, the postman refused to deliver our letters unless we changed our dog.$
参考答案
B
____ twice, the postman refus…——2009 高考英语第 34 题答案解析
2009_北京卷 (英语)
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2009_北京卷 (英语)
$34. ____ twice, the postman refused to deliver our letters unless we changed our dog.$
B