问题
选择题
—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
答案
答案：D
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”。
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