模擬小考卷之短文閱讀

短文閱讀，根據所讀內容在文后1～10的空格里填上適當的單詞或短語。注意：每空不超過3個單詞。

The farm economy of the United states has changed a lot in the last seventyTears. In the 1930s， twenty-five percent of the nation's population lived on farms.Today less than one percent of Americans do.