Question

【题目】He didn't understand the question, so there was a expression on his face. （puzzle）

Answer 1

【答案】puzzling；puzzled
【解析】句意：他不懂这个令人疑惑的问题。现在分词做前置定语, 表主动, 故填puzzling。puzzled句意：在他脸上有一个感到疑惑的表情。过去分词作前置定语, 表被动, 故填puzzled。