—Theyarequiet，aren'tthey?—Yes.Theyareaccustomed

问题详情：

—They are quiet，aren't they?

— are accustomed ________ at meals.

A．to talk ­                         B．to not talk

C．to talking                        D．to not talking

【回答】

D

知识点：介词

题型：选择题