Nowadays signs prohibiting smoking a common sight in restaurants, tea houses and shopping malls． A． ...
2022-11-28 07:36:07 185次 2013-2014学年陕西省高三下学期第一次联考英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Nowadays signs prohibiting smoking a common sight in restaurants, tea houses and shopping malls．
A． are B． is C． were D．was
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