Sông ngòi ở châu Á có ảnh hưởng gì đến đời sống và sản xuất của con người? Liên hệ sông ngòi ở miền trung nước ta?

mk cần gấp ạ:<

When you enter the supermarkets, you see shelves full of food. You walk in the aisles between the shelves. You push a shopping cart and put your food in it.

You probably hear soft, slow music as you walk along the aisles. If you hear fast music, you walk quickly. The supermarket plays slow music, you walk slowly and have more time to buy things.

Maybe you go to the meat department first. There is some meat on sale, and you want to find it. The manager of the supermarket knows where customers enter the meat department. The cheaper meat is at the other end of the meat department, away from where the customers enter. You have to walk by all the expensive meat before you find the cheaper meat. Maybe you will buy some of the expensive meat instead of the meat on sale.

The dairy department sells milk and milk products such as butter and cheese. Many customers like milk that has only a little butterfat in it. One store has three different containers of low-fat milk. One says ‘1% fat’ on the container. The second says ‘99 percent (99%) fat-free’. The third says ‘Low fat’ in big letters and 1% in small letters. As you can see, all the milk has the same amount of fat. The milk is all the same. The amount of milk in each container is also the same. However, in this store, they cost three different amounts of money.

Maybe the customers will buy the milk that costs the most.

81. What is the main topic of this passage?

    A. How different kinds of food are arranged in supermarkets.

    B. Soft, slow music makes people buy more in supermarkets.

    C. The supermarket is designed to make you buy things.

    D. Be sure not to be deceived in supermarkets

82. The manager knows __________.

    A. which customers like low-fat milk               B. which customers like slow music

    C. where customers enter the meat department          D. where customers come from        

83. When you walk by the expensive meat __________ .

    A. maybe you will buy some                            B. maybe you will buy low-fat milk

    C. you will look for fresh food                         D. you will walk on the shelves

84. The word “they” in the last paragraph means ______.

    A. the customers                                                        B. the managers of the supermarket                         C. the containers of low-fat milk                      D. the food in the supermarket

85. There are three different containers of low-fat milk.

    A. One has 99 percent of butterfat.                            B. They all cost the same amount of money.

    C. One has less fat than the others.                             D. They all have the same amount of fat.