题目

Mary来信诉Mike一些困惑,请根据她的来信内容,填入所缺的单词,每空一词。 Dear Mike,    My friend Tom finds maths very __81________. He wants me to let him copy my homework. I want to ___82_____ because I think it’s dishonest, but I don’t want Tom to get into trouble with his parents. They have___83______ him about not working hard. And he does work hard----it’s just that he doesn’t __84______ the work. What ____85______ I do? Please tell me.                                                                    Yours,                                                                     Mary 答案：81-85 hard/difficult, refuse, warned, understand, should 

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