完形填空China is a large country of agriculture[农业]. We all know that there

　　China is a large country of agriculture[农业]. We all know that there are more than 800 million ___1___ in China.
　　China starts to ___2___ the science of agriculture much earlier ___3___ other countries in the world. ___4___ people in Europe and America were trying to shoot wild animals and birds for food， farmers in China were ___5___ the science of agriculture. For example， Jia Sixie， who lived in the Northern Wei period （386-534AD）， ___6___ one of the farming pioneers. After he finished his work in government， he ___7___ home and spent his time on research into agriculture. He ___8___ information， did experiments and learnt from the experience of farmers. He wrote a book called Qi Min Yao Shu. The book ___9___ has 110000 words is about both farming and gardening. This book is ___10___ to be an important summary[概要] of the knowledge of farming.
　　（ ） 1.A.workers B.farmers C.pioneers D.scientists
　　（ ） 2.A.develop B.grow C.choose D.interest
　　（ ） 3.A.to B.till C.then D.than
　　（ ） 4.A.Where B.For C.While D.Because
　　（ ） 5.A.trying B.working C.studying D.growing
　　（ ） 6.A.were B.was C.came D.be
　　（ ） 7.A.left B.built C.returned D.destroyed
　　（ ） 8.A.advised B.improved C.collected D.planted
　　（ ） 9.A.who B.whom C.it D.which
　　（ ） 10.A.made B.considered C.kept D.studied