问题
单项选择题
The biggest whale is（）blue whale, which grows to be about 29 meters long—the height of（）9-storey building.
A.the；the
B.a；a
C.a；the
D.the；a
答案
参考答案：D
解析：
考查冠词用法。9-storey building为泛指，故第二个空选a；blue whale有非限制定语从句修饰，所以应用定冠词。故选D。