Task 3. Complete the sentences: 5. Sergei Korolev led the team that created the first ______ "Sputnik-1".

Analysis: Sergei Korolev was a Soviet rocket engineer and spacecraft designer. He was the chief designer of the Soviet space program during the Space Race. Under his leadership, the Soviet Union launched Sputnik 1, the world's first artificial satellite, in 1957. Therefore, he led the team that created the first artificial satellite.

Answer: artificial satellite