【题目】—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
在线课程【答案】D
【解析】
试题分析：D；考查固定搭配。Be accustomed to doing习惯于做…，它的否定形式是：be accustomed to not doing。句意：——他们很安静，对吧？——是的，他们习惯于吃饭的时候不去讲话。故选D