1. Chicago ______________ the third-largest city in the United States. A. has been B. will be C. is 2. Chicago ______________ "The Windy City". A. often calls B. is often called C. often is called 3. Over three million people ______________ in the two hundred and twenty-five-mile area of Chicago. A. live B. are living C. is living 4. Today, some of the world's tallest and most famous skyscrapers ______________ in the city. A. is found B. finds C. are found 5. Located in the heart of the city ______________ the one hundred and ten-story Sears Tower. A. has been B. is C. will be