问题

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

正确答案是：

同类题型

she burst into tears

Bush the blackboard, but he nothing.

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Would you like camping with me — I’d like to. But I’m busy my homework.

It’s if I lose this job, I can always get another one.[ ]