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In 1912 a group of students of Cambridge University came to a toyshop and bought a big dog there. The students knew that next day a group of 1_______ was coming to Cambridge and among them was I. P. Pavlov, the great 2_______ physiologist. He came to Cambridge 3_______ the honorary degree of Doctor of Cambridge. So the students wanted to present Pavlov with a toy dog. This idea came from the grandson of Charles Darwin. He told his comrades that when Darwin got his Doctor’s degree at Cambridge the students of that time gave him a big monkey, so they showed him that they agreed with his 4_______ of the origin of man.
scientists
Russian
to receive
theory