My little Sister     I have a little sister.Her name is Lily.She is six yeas old this year .She is in class two,grade one.She always wears a red jacket and a pair of red trousers.She has two big eyes and beautful curly hair.She looks very beautiful .meanwhile ,she is very clever.     One days ,i asked her a question ,"there are five birds in a big tree.A boy shot one of theme,how many birds ane there in the tree?"     She thought a moment,and then answered,"there is no bird in the tree now."     "but why?" i asked .      "because the other birds flew away,and the dead one fell down from the tree." she answered with a smile.