Talk witn your classmate. A. What is the highest /longest/tallest...in the world? B.It is... A. How high/long/tall is

A. - What is the tallest building in the world? B. - It is a skyscraper in Dubai, United Arab Emirates. It is called Burj Khalifa.A. - How tall is it? B. - It is 828 meters. A. - Where did you learn it? B. - I saw it on television in the Discovery programme. A. - What is this programme about? B. - It is about interesting facts, exciting things, flora and fauna and people all over the world.