Alex Palmer Haley (1925―1992) became famous for the publication of the novel Roots, which traces (追踪) his ancestry (祖先) back to Africa.Alex Haley was born in Ithaca, New York. His father was
I feel it hard to keep up with my classmates in study and sometimes I lose heart. But whenever I want to , my teacher always encourages me to work harder. A. go on B. run aw