Long long ago， people had gather leaves and 56．＿＿＿＿＿
fruit of plants to eat with． They didn’t know how 57． ＿＿＿＿＿
to plant crops or how to keep animals for their 58． ＿＿＿＿＿
food． We call them Stone Age people． Thing for 59． ＿＿＿＿＿
them were terrible and hard． Now there have still 60． ＿＿＿＿＿
some people living liked those Stone Age people． 61． ＿＿＿＿＿
They live in places that are hard reach． They do 62． ＿＿＿＿＿
not know of our invention， for they keep themselves 63． ＿＿＿＿＿
away our civilized world． For many years 64． ＿＿＿＿＿
a group of people call Aruntas have lived alone 65． ＿＿＿＿＿
in the center of Australia．
参考答案：
56． had→had to 57．去掉with 58．√ 59． Thing→Things
60． have→are 61． liked→like 62． reach→to reach
63． invention→inventions 64． away后加from 65． call→called
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