$21. John promised his doctor he ________ not smoke, and he has smoked ever since.$
参考答案
D
John promised his doctor he _…——2008 高考英语第 21 题答案解析
2008_北京卷 (英语)
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先及格路线 · 英语 · 高难题
2008_北京卷 (英语)
$21. John promised his doctor he ________ not smoke, and he has smoked ever since.$
D