短文改错：
此题要求改正所有短文中的错误。对标有题号的每一行做出判断：如无错误，在该行右边横线上画一个勾（√）；如有错误（每行只有一个错误），则按下列情况改正：
此行多一个词：把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并也用斜线划掉。
此行缺一个词：在缺词处加一个漏字符号（^）,在该行右边横线上写出该加的词。
此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。
注意：原行没有错的不要改。
| Nowadays in the United States, more and more people are | 76. _____________ |
| beginning to build underground houses where save open land. | 77. _____________ |
| When houses are underground, there are more land for parks, | 78. _____________ |
| playgrounds and gardens. Underground house also save energy. | 79. _____________ |
| They use only a few energy to stay warm or cool. As we know, | 80. _____________ |
| the idea underground houses is very old. People in the past | 81. _____________ |
| live in underground houses and underground cities in China. And | 82. _____________ |
| today you can’t find large underground shopping centers in China, | 83. _____________ |
| Japan, South Korea and Canada as well as. Some countries also | 84. _____________ |
| build underground factories and shop-houses to held things. | 85. _____________ |