20. People often turn to humorous ways when meeting with difficult because of its effectiveness.
A. situations B. occasions C. backgrounds D. cases
19. Politeness is a(n) phenomenon among all the social groups, but it is marked by different cultures.
A. steady B. complete C. universal D. original
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com