with the size of the whole earth, the biggest ocean does not seem big at all.
A. To pare
B. When paring
C. Comparing
D. When pared
网友回答
A. To pare
B. When paring
C. Comparing
(答案→)D. When pared
解析：考察分词作状语用法。The biggest ocean与pare之间构成被动关系，使用过去分词。故D正确。可以认为在pared前面省略了it is.