Question: Read the following article and select the best answer. Article: Taiwan island, the biggest island of China, is between the South and East China Seas. Almost two-thirds of the island is covered by mountains. Traveling in Taiwan, you can do lots of things. In Taipei, you can taste all kinds of delicious food . Standing at the top of Taipei 101, the world's tallest building until now, you can get a view of the whole city. Taiwan has nice natural _ as well. Sun and Moon Lake is a beautiful lake. On one side of the island it looks like the sun, on the other side it looks like the moon. That is why people call the lake the Sun and Moon Lake. Ali Mountain is the nearest mountain around Sun and Moon Lake. You can enjoy a nice experience with Gaoshan people. It's a wonderful place to see a very beautiful sunrise. If you enjoy swimming, fishing, boating and eating delicious fruit and fresh fish, Peng Lake must be a good place to visit. Everywehere in Taiwan, you can see mountains, valleys , and hot springs, together with fields of rice, oranges and tea. Question: What is "Taipei 101" in the passage? - A large lake. - A big city. - A high mountain. - A tall building.
Answer:
A tall building.