They wanted the house at the foot of the mountain in a way to look pretty.
A. build
B. to build
C. built
D. being built
网友回答
A. build
B. to build
(答案→)C. built
D. being built
解析：句意：他们想要山脚的房子被建造的看起来很漂亮。这里使用want +宾语+宾语补足语的结构，因为the house和build是被动关系，用过去分词做宾语补足语，所以选C。