Which conditional shoulld we use in these examples
1. We expect Mary to be here soon.If she(not arrive),we

her.
2.I sleep badly.If I (not get) enough sleep,I(not get) much work done.
3.Jenny is very sociable.If you(ask) her to a party,she(always come).
my opinion is that we should use 2 conditional,and for the 2 and 3 i am not sure whether it is 0 or 1 conditional.As a whole when do use 0 conditional and can we use it for sentences like the third and second one.It will be better for me if the person who answers me explains why does he think like that.
THANKS IN ADVANCE!!!