Seen from the top, the stadium looks just like a bird’s nest of tree branches.
A. to make
B. made
C. making
D. being made
网友回答
A. to make
(答案→)B. made
C. making
D. being made
解析：考查形容词短语做定语。固定词组be made of由…做成；本题中形容词短语made of tree branches修名词nest；句意：从顶上看，这个体育馆看起来就像是用树枝做成的鸟巢。故B正确。