－Theyarequiet,aren’tthey?－Yes.Theyareaccustomed

问题详情：

 －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

【回答】

D

知识点：介词

题型：选择题