Gap Fill - Supersonic Jets - Level 2


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Paragraph 1

Supersonic passenger planes could be in the this decade. Supersonic means than the speed of sound, which is 1,234.8kph. United Airlines plans to buy 15 supersonic from a company called Boom Supersonic. The planes will fly up to 88 , all in business . The planes will have a top of 2,099kph. Most modern airplanes have a speed of around 1,000kph. The new planes will cut the it takes to fly from London to New York. It will take than four hours. It takes around 7 1/2 hours.

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