---Theyarequiet,aren’tthey?---Yes.Theyareaccustomed

問題詳情：

--- 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

解析考點是非謂語動詞。

知識點：其他

題型：選擇題