Составить 6 вопросов к предложению "last weekend the girls went on a picnik with there family."

1)when did the girls go on a picnik with there family?
2)Who was went on the picnik with girls last weekend
3)Did the girls go on a picnik last weekend
4)Did the girls go on a picnik last weekend or yestarday?
5)Last weekend the girls went on a picnik with there family,didn't they
6)I wonder if the girls went on a picnik with there family?