you must have heard the t___ "etiquette".it means n__ and p___ social behavior.but sometimes"e___"makes some people u____ and a___ for example you want to play l__ music at home but the neighbors in the y__ would ask you to t__ it d___ r_____a___ even if you are with your friends you have to keep your voice down in p___ places we should also t___ c___ not to c___ or s___ loudly in public what is worse a good b__in E___ may be regarded as an i___ one in some A___ countries How can people in modern societies find s____ to relax themselves in spite of the etiquette(填单词）