Interested in Language
Need help to understand whether action is finished or still continuing in following sentences.
1] I have watched TV since this morning/for 3 hours.
2] She has travelled about 10 km since 6 o'clock this afternoon/for 4 hours.
3] He has cleaned the room since last week/for last 7 days.
4] I have smoked since I was 15 years old/for 20 years.
5] We have waited since 12 noon/ 2 hours to see her.