Jane is only four and doesn't go to school．Her grandpa was a teacher and now stays at home．He teaches the girl to read and write．The girl studies hard and has learned a lot．She can count from one to one hundred, read some picture-books and write the names of her family．Her parents are happy and often show it to others．People often praise(赞扬)her for it．Once Mrs Black took her daughter to a birthday party, the guests praised a rich woman's boy．Mrs Black asked him a few questions, but all his answers were wrong．Jane began to laugh at him．The rich woman was angry．She told her friend, a teacher, to ask the girl some questions, but the girl answered all．The teacher was surprised and thought for a while．Then she asked,“There're three flies on a table．How many will be left if I beat one?”“One,”answered Jane．“You're wrong,”called out the fat woman．“All of them will fly away!”“Don't you think a dead fly can fly, Madam?”asked the little girl．

　　The guests began to laugh and the woman's face turned red．

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