A: we don't we buy a house? if we buy a house, we could grow our own vegetables.
B: Right. but how will we make enough money to buy a house?
A: well, if you don't drive to work every day, we could save a lot of money on gas.
B: OK, but if i take the bus, I will be late to work. And if i'm late to work, i won't get a promotion.
A: oh, i understand... if you don't get a promotion, you won't make enough money to buy a house.
B: Now you get the idea.
A:
B: