7+Unit+7+For+Since+How+LOng



= FOR: durant, enfatitza la durada, el període de temps =

for three days, for week,

= SINCE: des de: enfatitza el punt de partida que és un punt concret. =

since wednesday, since 1946, since I was yound, since Christmas

1)http://www.better-english.com/grammar/forsince.htm

2)http://www.englisch-hilfen.de/en/exercises/confusing_words/since_for.htm

http://club.telepolis.com/englishweb/forsince.html