Complete the sentences with possessive 's or s'.

1) Jan lives in a small flat. Jan’s flat’s small.; 2) Tanya and Nina are sisters. Nina is Tanya’s sister.; 3) Mike has got a black bag. Mike’s bag is black.; 4) Naomi is an American English teacher. Naomi’s English teacher is American.; 5) Nick has got an old car. Nick’s car is old.