4 Look at the apostrophes. Tick the correct sentence (a or b).
1 a My children's dog is at their uncle's house.
b My childrens' dog is at their uncles' house
2 a That is my wifes' sister's car.
b That is my wife's sister's car.
3 a My nephew's mother is my brothers' wife.
b My nephews' mother is my brother's wife.
АОАОАООА СРОЧНО ​