Reading · Part 6

Missing ParagraphsExercise 42 of 70

Hot Air

They glow, move across the sky at incredible speed and are invisible to radar. The mysterious shapes have for decades been cited by UFO enthusiasts as proof that we have attracted visitors from another world. (1) .......... After four years of study they concluded that they are not flying saucers, but 'plasmas' of…

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Missing Paragraphs: tips and strategyHow to approach this part of the exam