Crusoe a boat, but he failed.
A. meant to build
B. meant building
C. had meant to build
D. had meant building
网友回答
A. meant to build
B. meant building
(答案→)C. had meant to build
D. had meant building
解析:mean+不定式表示:打算; mean动名词意为:意味着。根据句子时态的要求和后面的failed,这里要用过去的过去。