Theorie:

Study the information about phrasal verbs. On and off. Part 2.
  
1. Verb + on = continue doing something
 
Drive on/walk on/play on = continue walking/driving/playing
  
Go on = continue

Keep on doing something
 
She keeps on criticizing me. I’m fed up with it!
  
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The party went on until 4 o’clock in the morning.
  
2. Get on = progress

Get on with somebody= have a good relationship

Get on with something= continue doing something you have to do, usually after an interruption.
  
I must get on with my work. I have a lot to do.
 
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3. Verb + off

Doze off, drop off, nod off = fall asleep

Finish something off = do the last part of something

Go off = explode or ring (an alarm)

Put somebody off doing smth.= cause somebody not to want something or to do something

Rip somebody off = cheat somebody

Show off = demonstrate

Tell somebody off = speak angrily if the person did something wrong
 
The lecture was not so interesting. In fact I dropped off in the middle of it.
  
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Look at the boy on the new bike. He’s just showing off.

Kate’s mother told her off for wearing dirty shoes in the flat.
 
 
Quellen:
www.solvencyiinews.com
www.workcomms.com
www.hexjam.com
Raymond Murphy. English Grammar in Use- Cambridge: CUP, 379p.