Fill in: than, of or in and the correct comparative or superlative form. Sarah Jones has one brother and one sister. She is 1)................ (young) ......... the three. Sarah's brother, John, is three years 2).................. (old) .......... her and he is also much 3)...................... (tall). He is 4) ............... (tall) person ......... the family. Sarah's sister, Julie, is only one year 5)............ (old) than Sarah. Julie is sixteen, and she is 6)............. (good) student................. her class. Sarah thinks sport is much 7).................... (interesting)........ schoolwork. She is 8)................ (fast) runner................ the school team.