Question

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Sergey Korolev was a rocket engineer and designer. He was called the father of the space programme. Sergey graduated from the Kiev Polytechnic Institute,the Bauman Moscow Higher Technical School and Moscow Pilot School. Korolev has a lot of merit. He tested and launched the spaceship Vostok. Also he published a book '' A rocket flight in stratosphere''. Sergey received the Lenin Prize and the Tsiolkowsky Gold Medal.

Answer 1

Sergey Korolev was a rocket engineer and a designer.

He was called  the father of space programme.

Sergey graduated from  the Kiev Polytechnic Institute and  the Bauman Moscow Higher Technical School and Moscow Pilot School.

Korolev has a lot of merits.

He tested and launched the spaceship Vostok.

Also he published a book ''A rocket flight in stratosphere''.

Sergey was awarded with the Lenin Prize and the Tsiolkowsky Gold Medal.

Answer 2

Sergey graduated... Без "from"
Остальное правильно