unit 1 artist unit 2 royalty unit 3 composer unit 4 writer unit 5 a ctress unit 6 scientist unit 7 psychiatrist unit 8 humanitarian unit 9 explorer unit 10 journalist unit 11 educator unit 12 cochran pilot unit 13 tennis player unit 14 gquez writer unit 15 zoologist unit 16 athlete and actor unit 17 political leader unit 18 entrepreneur unit 19 activist unit 20 skier chinese version answer key