she was invited to the ball made her very happy.A. WhetherB. BecauseC. WhatD. That

网友回答

A. Whether
B. Because
C. What
(答案→)D. That
解析：考查同位语从句：句意：她被邀请参加舞会使她很高兴。Made是谓语动词，前面的是主语从句，主语从句不缺少成分，用that连接，that不做成分，也不能省略，如果主语从句缺少主宾表，就是用what。选D。