搜题，就来5TiKU.com题库【问题】 — Sir , could you please put out your cigarette? This is a smoke-free（无烟的）school.— __________
— Sir , could you please put out your cigarette? This is a smoke-free（无烟的）school.— __________
正确答案：B.No problem
题目解析：本题出自青岛市广播电视大学，青岛广播电视大学-理工英语3，由丰阳塔题库搜集整理。
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