In communication, a smile is usually ________ strong sign of a friendly and ________ open attitude. ...
2022-10-09 07:14:16 42次 2016-2017学年江苏南通中学高二上期中考试英语卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
In communication, a smile is usually ________ strong sign of a friendly and ________ open attitude.
A. the, /B. a, anC. a, /D. the, an
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