(1) Were there many people before 100 years? 
               (2) What weren’t there 100 years ago?
                (3) Now, the harbor is small, what can you see?

Our city is 500 years old. 100 years ago, it was very small. There weren't many people. We had streets but there weren't any highways. There weren't any factories either, but there was a big harbor and lots of boats. Now, the city has lots of highways and plenty of people. There are lots of factories, too. The harbor is small, but you can see lots of boats there. There are also cars, buses, taxis and a subway. The city is very different now from 100 years ago.