Yuan Longping is a____(lead) figure in rice-growing world .He was bron and ____(bring) up in Chi...

Yuan Longping is a____(lead) figure in rice-growing world .He was bron and ____(bring) up in China .When he was a boy ,he was ____(education)in many schools .As a young teacher ,he ____(begin) experiments in crop breeding .He thought the key ____feeding people was to have more rice quickly and there was only one way to do this-by ____(across) different species of rice plant .Then he began his search ____ a special type of rice plant .As a result of Yuan Longping✀s great discoveries ,China✀s rice ____(produce) rose ____47.5% in the 1990s .And 50 thousand square kilometres of rice fields were ____(convert )to growing vegetables and other cash crops . 速度哦