you have done might do harm to other people. A. That B. What C. Which D. This

_____________ you have done might do harm to other people.

  A. That    B. What     C. Which     D. This

试题答案

B

解析:

主要测试主语从句。由句子的语境可知句子________ you have done中动词do需要宾语，而且在下面的句子____might do harm to other people中充当主语，双重作用只能是选择what最佳。译文：你做的事情可能对其他人有害。