填空题 Peter's friends laughed at him, because he got bad grade in the exam.
Peter was ______ his friends because he got bad grade in the exam.

  • 1、
【正确答案】 1、laughed at by    
【答案解析】[名师解析] 用被动语态把原来句子中两个不同的主语改写成一个主语Peter。