Do you want to come with me to Walmart?What do you need to buy?I'm out of groceries.Groceries are expensive at Walmart!You really think so?Yes! You should buy groceries at the market.I also need some new blankets.Well, you'd buy that at Walmart.If Walmart sells both, why go to different stores?You'll save money if you do.Why will I save money by going to different stores?Stores have different prices for different things.
