Please see some examples here, they will help you understand the difference better.
To do the listening on "Travel tips to Ireland", go here (http://www.elllo.org/english/0601/T638-Ruth-Advice.htm), but make sure you HIDE the text before you listen
To do the listening on "Travel tips to Ireland", go here (http://www.elllo.org/english/0601/T638-Ruth-Advice.htm), but make sure you HIDE the text before you listen
