A
Pizza Inn
Pizza Inn is a pizza restaurant chain that specializes in American-style pan pizzas. Pizza Inn prices are similar to other large pizza chains except for the fact that they only offer pizzas in medium and large sizes. Pizza Inn offers pizzas in 4 different crusts （酥皮）：Thin Crust, New York Pan, Italian Crust and Triple Cheesy Stuffed Crust. The restaurant also offers other kinds of typical Italian food.
Freddy's
Freddy's is a fast casual restaurant chain that specializes in various sandwiches and burgers as well as frozen custard （蛋奶沙司）. Freddy's prices are about averages . Besides frozen custard, Freddy's also has a few varieties of beef and chicken burgers and sandwiches . They also have 3 different hot dogs: regular, Chicago-style and chili cheese .
A & W
A & W is a fast-food restaurant chain that is known for their own brand of root beer. A & W prices are competitive with the rest of the fast-food industry. Although A & W sells burgers, chicken sandwiches, hot dogs and frozen treats, most people go there for their famous root beer.
Hopdoddy
Hopdoddy is a fast casual chain specializing in burger and beer combinations. Their burgers are advertised as being made from the freshest ingredients （食材）. Hopdoddy prices are higher than those of an average fast-food burger shop. Part of that is simply because of the quality of ingredients used to create the food. Although they are mainly known for their burgers, they also offer various other things such as salads, sides and milkshakes .
21. How is Pizza Inn different from other large pizza chains?
A. Its prices are lower.
B. It doesn't offer small pizzas .
C. Its pizzas are more delicious .
D. It doesn't serve frozen treats.
22. What is the most popular in A & W?
A. Root beer. B. Burgers. C. Hot dogs. D. Sandwiches.
23. Why are Hopdoddy burgers more expensive?
A. They are unique in taste.
B. They are combined with beer.
C. They are made in limited numbers.
D. They are made from high-quality ingredients .
