Choose the suitable word to fill in each plank.

Today, supermarkets are found in almost every large city in the world.  But the first supermarket (21)____opened only fifty years ago. It was opened in New York by a man named Michael Cullen. A supermarket is different (22)_____other types of stores in several ways. In supermarkets, goods are placed on open shelves. The (23)________ choose what they want and take them to thecheckhôngut counter. This means that fewer shop assistants are needed than in other stores. The way productsare displayed is another difference between supermarkets and many other types of stores; (24)_____example, in supermarkets, there is usually a display of small inexpensive items just in front of the checkhôngutcounter: candies, chocolates, magazines, cheap foods and so on. Most customers (25)________go to a supermarket buy goods from a shopping list. They knowexactly what they need to buy. They do the shopping according to a plan.

Today, supermarkets are found in almost every large city in the world.  But the first supermarket (21)____opened only fifty years ago. It was opened in New York by a man named Michael Cullen.