Each of the sentences below has one or two mistakes. Rewrite each sentences so that it is grammatically correct.
5.2.1 I am watching television since I came home from school.
5.2.2 How many cigarettes have you been smoking this afternoon?
5.2.3. Sam is working here since 2015.
5.2.4. I have this watch since a long time.
5.2.5. I have revised my English since 9 o’clock this morning
. 5.2.6. Peter is attending English classes since two years.
5.2.7 My best friend has always been hating fish.
