Larry is a twenty-seven-year-old architect(建筑师). He buys his food, clothes and other things he needs in the shops near his home, because he enjoys talking with nice shop assistants(店员) and the fresh food. However, he says that buying things from these shops costs a little more money.
Jan is a thirty-year-old mother of two children. She and her husband are both teachers. They like to shop at the big mall with their children because it's safe and clean. And there are always interesting things for the family to enjoy. Another advantage is that the things are usually good and cheap. However, Jan says that the mall is always crowded(拥挤的), and it's so big that children can easily get lost.
Roger is a twenty-year-old student who loves to shop on the Internet. He thinks the main advantage is that he can shop at any hour of the day or night. He can also buy great things from all over the world. However, according to(根据)Roger, the biggest difficulty is that sometimes it isn't safe to buy things on the Internet. For example, once he paid for things but never received them.
