问题
选择题
-Is it polite to speak or laugh loudly ?
-No, I don't think so.
A．on time
B．at least
C．by chance
D．in public
答案
答案：D
题目分析：句意:-在公众场合大声说话或大声笑是有礼貌的吗？-不，我不那么认为。on time 准时；at least 至少；by chance偶然地；in public在公众场合。根据句意可知选D。