问题
选择题
Since her only child passed away a few years ago, family has been a ________ topic for her.
A．forbid
B．forbade
C．forbidding
D．forbidden
答案
答案：D
题目分析：句意：因为她唯一的孩子在几年以前去世了，所以对于她来说，家庭成了一个被禁止的话题。这里修饰“topic”，故用形容词，选D。