Thebiggestwhaleis

問題詳情：

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

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

【回答】

D

知識點：冠詞

題型：選擇題