问题
选择题
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
答案
答案：D
题目分析：第一空用定冠词表类别，特指“蓝鲸”；第二空泛指“一座9层楼那么高”。句意：最大的鲸是蓝鲸，它能长到29米长——相当于一座9层楼那么高。