-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

南朝齐诗人（）对山水诗的发展起了很大的推进作用“余霞散成绮澄江静如练”即是他描写山水的名句。