书面表达。
英语老师这里有两份没写名字的试卷，一份得了90分，另一份得了65分，却没有人来认领。请帮这位老师分析一下，看看试卷到底会是班级中哪两位同学的。（词数80左右）
参考词汇：can't, must, might, do well in, be good at, average student,
top student, lazy, work hard, tidy, handwriting, try to do, belong to
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There are two papers without name here. One paper is90. It can't be a boy's because boys can't write so well. So it might belong to a girl. We have two
girls who have good handwritings-Lucy and Mary. The paper can't belong to Mary because she is an average student and not good at English. Then this
paper must be Lucy's. She works very hard every day. She is the top stuaent in our class. The other paper is 65. I think it must be Jack's because he is very
lazy and doesn't do well in English. This paper is dirty, too. And now he has
not got his paper yet. So it must be his.
(答案不唯一。)