I figured I should give you the correct answers to the sin,sitt & sina -exercise. Here we go:
1. Erik gillar sitt jobb.
It is Erik’s own job (ett jobb). You couldn’t really say that you like someone else’s job
2. Man måste lyssna på sina föräldrar.
We listen to our own parents, and therefore – “sina”.
3. Johan och hans flickvän ska flytta ihop.
The “och” makes Johan and his girlfriend the subject of the sentence. Only the object can be “sin”.
4. Johan köper ofta blommor till sin flickvän.
In this sentence the girlfriend is the object and hopefully Johan is buying flowers for his own girlfriend – therefore “sin” is the correct answer.
5. Tomas och Björn bor fortfarande hemma hos sina/hans föräldrar.
In this case we have we have two possibilities. If we assume that Tomas and Björn are brothers and still living at home, we would use “sina”. If we assume that Tomas and Björn are a couple, we could use “hans” but that wouldn’t really tell us if they live at Börn’s or Tomas’ parents.
6. De ska låna ut sin sommarstuga till sin dotter och hennes pojkvän.
They are letting their own dotter borrow their summer house. The boyfriend of the daughter will also stay in the summerhouse. If we would say “sinpojkvän” in this case the boyfriend (the object) would belong to the parents (the object)
7. Annas mamma säger att Anna kan låna hennes bil.
This is a tricky one. It is Anna’s mum’s car we are talking about, but since the car is the object of the subordinated clause (the part after “att”) and Anna (not her mum) is the subject of the sub. clause we have to use “hennes”.
8. Anna får låna bilen, eftersom hennes bil är på verkstaden.
In this case “hennes bil” is the subject in the subordinated clause.
9. Hon är ute och går med sin hund.
She is out walking her dog. I was thinking it was the person’s own dog, therefore we use “sin”.
10. Hon och hennes man är ute och går.
Here we have the same situation as in example #3. She and her husband together make the subject, and therefore we can not use “sin”.
Sara the Swedish Teacher