Science and technology are developing rapidly every single day,not only do they make our life become more and more convenient,but also improve our living quality.Also,science and technology can to some extent
企业回1 up your bok 2 back the exercises 3 肯定句、Afirmative sentence 否定句：Negative sentence 一般疑问句 general question 特殊疑问句 special question 反义疑问句 tag question 感叹句 Exclamatory Sentences（这个不是太确定，是用翻译的）
science is to make our life more convenient;the development of science make medicine more developed,so many people out of pain;is the development of science make the earth into a "global village"the inventio
Now people need a speed of society, and the development of science is to make our life more convenient;The development of science make medicine more developed, so many people out of pain;Is the development
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