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
考查动词用法。句中be accustomed to doing习惯于做，根据句意用否定。句意：——他们很安静，不是吗？——是的，他们习惯于吃饭不讲话