The teacher, it clear that he was disappointed with us, left the classroom.
A. made
B. having made
C. who has made
D. making
网友回答
A. made
(答案→)B. having made
C. who has made
D. making
解析：
试题分析:考查非谓语。句子主干是The teacher left the classroom.。动词make 和主语the teacher是主动关系，而且是动作发生在主句动作之前，所以应该用现在分词的完成式，表示主动和完成；而C 选项定语从句时态错误，所以B选项正确。句意：老师在表明他对我们非常失望后就离开了教室。