November21isWorldHel的精选

问题详情：短文填空 根据短文内容及所给首字母提示写出所缺单词,每空一词。November21isWorldHelloDay.Atschool,welearnedthat“Howdoyoudo?”and“Howareyou?”arestandardwaystosayhellowhenmeetingothers.Butdoyou...