Question

The biggest whale is ___ blue whale, which grows to be about 29 meters long—the height of ____ 9-story building.

A. the; the    B. a; a    C. a; the      D. the; a

Answer 1

D

解析:

第一空后有一非限制性定语从句来修饰，所以应为特指；第二空泛指一座任何的九成楼的高度，用来解释29米长的长度，使抽象概念具体化，故选D。