此题要求改正所给短文中的错误。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：
　　该行多一个词：把多余的词用斜线（\）划掉，在该行右边的横线上写出该词．并斜线划掉；
　　该行缺一个词：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
该行错一个词：在错的词下划一横线．在该行右边横线上写出改正后的词．
One of China’s early agricultural scientist was Jia Sixie, who lived   ____________
in the sixth century AD. He is born in Yidu, Shandong Province.            ____________
He spent his time do research into agriculture. He collected information,      ____________
studied them, did experiments and learnt about the experience of farmers.      ____________
Around 540AD, he wrote a book calling Qimin Yaoshu. The book       ____________
is about both farming and gardening. It includes advices on the following      ____________
subjects: growing green vegetables and fruit trees, keeping cows, sheep    ____________
and fish in lakes. There are also instructions for making the wine.        ____________
The book is a practical guide to farming. For centuries before Jia Sixie died, ___________
his book studied by Chinese farmers and students of farming.               ____________