I had a very unusual experience(经历) on Sunday. At ten in the morning, I was 1 down the street when a UFO landed right 2 of me. You can imagine(想象)3 strange it was！An alien 4 and walked down Center Street. I followed it to see 5 it was going, and I was very surprised when it went 6 a souvenir shop. While it was 7 at the souvenirs(纪念品), the shop assistant called the 8. Before the police arrived, the alien left the 9 and then visited the Museum of Flight. 10 the alien was in the museum, I called the TV station. Isn't that amazing!