I know the ________of the bird because it's one of the_

试题详情及答案解析

I know the ________of the bird because it's one of the________ birds in the world.

A．importance; important

B．important; importance

C．importance; most important

D．important; important

答案：C

试题分析：句意：我知道这只鸟的重要性因为它是世界上最重要的鸟类之一。根据句意第一空是要用important的名词importance；第二空“最……之一”应用important的最高级形式，所以选C。
考点：考查词形的变化