Read the passage and then choose the best option among A, B, C or D to fill in the gaps. Write your answers in the space provided

.C. READINGI. Read the passage and then choose the best option among A, B, C, or D to fill in the gaps.Write your answers in the space provided. (1.0 pt)
Today, supermarkets are found in almost every large city in the world. But the first supermarket (36)........opened only fifty years ago. It was opened in New York by a man named MichaelCullen. A supermarket is different (37)............other types of stores in several ways. Insupermarkets, goods are placed on open shelves. The(38)........ choose what they want and takethem to the checkout counter. This means that fewer shop assistants are needed than in otherstores. The way products are displayed is another difference between supermarkets and manyother types of stores; (39)......... example, in supermarkets, there is usually a display of small inexpensive items just in front of the checkout counter: candies, chocolates, magazines, cheapfoods and so on. Most customers (40)........go to a supermarket to buy goods from a shoppinglist. They know exactly what they need to buy. They do the shopping according to a plan.
Question 36. A. is B. has been C. was D.were
Question 37. A. in B. from C. of D. with
Question 38. A. customers B. managers C. assistants D. sellers
Question 39. A. in B. for C. of D. byQuestion 40. A. who B. what C. which D. whom