Comprehension Passage
Read the following passage:
The Eiffel Tower is a famous ___(X)___ located in Paris, France. It was designed by the engineer Gustave Eiffel and was built for the 1889 World's Fair. At 324 meters tall, it was the ___(Y)___ man-made structure in the world when it was completed. Today, it remains one of the most popular tourist attractions in Paris, with millions of visitors each year. The Eiffel Tower is also an important scientific ___(Z)___ center, with a number of meteorological and radio communication instruments located on it.
Select the most appropriate word from the options against ___(Y)___.
1
tallest
2
shortest
3
only
4
lowest