问题描述：
短文填空A:Excuse me.I have a favor to ask you.Can i copy your homework B:I'm a afraid not.But why do you want to ____________?A:I forgot to do mine.B:I don't think_________to copy my homework.A:_______do you think so?B:Because it will start a bad habit .You should ________.A:Aren't you my best friend B:________.But I can't help you this time .A:Ok .I can get over it.I should do it myself
问题解答：
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