—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
网友回答
A. to talk
B. to not talk
C. to talking
(答案→)D. to not talking
解析：词组“be accused to (习惯于)”，其中“to”是介词，后跟名词或动名词。动名词的否定式在其前加“not”。