【题目】All of us were _________ by the ________ question ___________ by a six-year-old boy.
A. puzzled; puzzling; rose B. puzzling; puzzled; raised
C. puzzled; puzzling; raised D. puzzled; puzzled; being raised
在线课程【答案】C
【解析】
考查非谓语动词。句意：我们都被一个六岁男孩提出的令人困惑的问题难住了。V+ed修饰人，v+ing修饰物，question与raise之间是被动关系，所以第三个空用过去分词作定语，故选C。