IV Complete the short passage with a proper word for each blank.

Nelson Mandela, born on July 18, 1918, is the first black president of South Africa. HE studied law _after he entered university. In 1944 he formed/ founded the ANC Youth League. Then in 1952 he set up a law office_ to help poor black people. Because of his fighting against_ the government and anti-black laws, he was sentenced_ to five yeas hard labour. Fighters from ANC began to blow_ up buildings in 1963 and he was put into prison again for life imprisonment(监禁) on Robben Island. Twenty-seven years later, he was freed__ at last by the white government. In 1993 he was made the first black president of South Africa. A lot of people in the world think Nelson Mandela is really a great person. What do you think of him？