问题
Tony is a quiet boy and he is accustomed ______ at meals, which is always appreciated.
A:not to talk
B:to not talk
C:to not talking
D:not to talking;
B:to not talk
C:to not talking
D:not to talking;
正确答案是：
同类题型
What are you going to do this weekend, Tom—My hair is too long, I will get my hair ________.
They found __________ impossible to finish so much work in such a short time.
Did you ____ your homework—No, I didn’t ____ it this afternoon.
I am certain by no means ________ his word since he has promised an amount of money to the poor