Youprobablyknowyoushouldsay“please”and“thankyou”atres...
问题详情: Youprobablyknowyoushouldsay“please”and“thankyou”atrestaurants.Youprobablyknowtherulesofalibrary.Youknowyoushouldrespectandbenicetoyourclassmates.Butdoyouhavemusicmanners? KeepItDown...