Question

Aeroplanes mostly fly with a speed __ __ lesz than that in the sound. Although __ __ we have at the modern world the __ __ aeroplanes which can fly on greater __ __ speed, they are not of common use. __ __ when a aeroplane flys with a speed __ __ which is more than that with a speed __ __ which is more than that with the __ __ sound, it consumes much fuels. __ __​

Answer 1

Answer:

Aeroplanes mostly fly with a speed less than that in the sound. Although  we have at the modern world the __height __ aeroplanes which can fly on greater speed, they are not of common use. _But_ __ when a aeroplane fly with a speed high which is more than that with a speed __low __ which is more than that with the  sound, it consumes much fuels.

Explanation:

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