【题目】它因在世界上最小的空间里拥有最长的过山车而世界闻名。
It is in the smallest space.(be famous for以……而闻名)

【答案】;famous for having the most length roller coaster
【解析】be famous for“以......而闻名”，介词后接动名词作宾语；“最长的过山车”用形容词最高级的形式，故填 famous for having the most length roller coaster。