unit 5 专项练习课文回顾（用适当的词语填空） i was born in south africa. in a very difficult 1 of time i met nelson mandela, a black lawyer, who became south africa president on 10 may 1994 - june 1999. he often offered 2 to poor black people on 3 problems and was generous 4 his time. i began school at the age of six. unfortunately, i had to leave school because my family could not 5 to pay the school fees and the bus 6 . so i had little
