By whom will the speech be made?为什么用by whomby whom，指由（或被）谁来做。例：陈述句：the speech will be made by Mr Li.改成被动就是by whom.......。那by whom 算特殊疑问词吗当然。没问题。也可以说成Whom will the speech be made by？但By whom will the speech be made？更常用。