Переделайте в отрицательные и вопросительные предложения, вот такие вот предложения:1) A strange shape is moving across the sky 2) In his free time he tries to find out 3) Some of our readers are thinking about up UFO

1. A strange shape isn't moving across the sky .(- ) Is a strange shape moving across the sky? ( ? )2. Does he try to find out in his free time? ( ?) He doesn't try to find out in his free time (- )3. Are some of our readers thinking about up UFO? ( ?)Some of our readers aren't thinking about up UFO. ( -)