From his look I knew that the questions during the interview were .A. puzzling; puzzled

问题补充：

From his look, I knew that the questions during the interview were .

A. puzzling; puzzled

B. puzzled; puzzling

C. puzzling; puzzling

D. puzzled; puzzled

答案：

A. puzzling; puzzled

(答案→)B. puzzled; puzzling

C. puzzling; puzzling

D. puzzled; puzzled

解析：考查形容词用法。过去分词转换的形容词常常修饰人或者与人有关的事物，现在分词转换的形容词常常修饰事物。句意：从他困惑的表情，我知道面试中的这个问题很让人困惑。第一空的look虽然不是人，但是他是与人有关的，故使用puzzled修饰。故B正确。