问题
选择题
---They are quiet, aren’t they?
--Yes. They are accustomed ______ at meals.
A．to talk
B．to not talk
C．to talking
D．to not talking
答案
答案：D
题目分析：考查固定句型，be accustomed to doing sth意思“习惯于做某事”，其否定形式be accustomed to not doing sth，句子意思“他们不习惯在吃饭时讨论”，所以选D
点评：固定句型是常考内容，平时要多记多积累，遇到固定句型题时，就很容易做出正确选择