The couple are spending their holiday on is described as one of the most beautiful islands.
A. that
B. what
C. which
D. where
网友回答
A. that
(答案→)B. what
C. which
D. where
解析：考查宾语从句。本题中的what is described as one of the most beautiful islands在句中作为介词On的宾语；what在这个宾语从句中做主语。句意：这对夫妻正在被称为世界上最美丽的岛屿上度假。故B正确。That和where在句中不能做主语。Which是指特定范围之内的某一个。