IV : Supply the correct form or tense of the verbs in brackets
Issac Newton ( 1 )_______ ( be ) one of the greatest men in the history of scientists. He ( 2 )_______( bear ) in a small village of Wootsphore in England. His farther ( 3 )_______ ( be ) a poor farmer. When the boy was fourteen, his father ( 4 )_____ ( die ), Newton left school and ( 5 )_____ ( help ) his mother on the farm. But the boy ( 6 )_____ ( not like ) farming, he was ( 7 )______ ( leave ) school, Newton studied at Cambridge University. He lectured on mathematics at Cambridge University after ( 8 )_______ ( graduate ). His greatest discovery ( 9 )_______ ( be ) the law of gravitation