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
考查冠词的用法。a/an表示泛指；the表示特指。句意“最大的鲸鱼是蓝鲸，它长达29米，有九层楼那么高。”the+名词单数可表示种类；泛指一个九层高的楼用a。故选D。