Which of the following sentences is NOT true? A. UFO means Unidentified Flying Object. B. UFO is often used to talk about alien spaceships.Đoạn văn32/40Which of the following sentences is NOT true?UFO means Unidentified Flying Object. UFO is often used to talk about alien spaceships. Many UFO sightings are hoaxes. Over half of all reported UFO sightings are identified.Giải thíchChọn đáp án C