1.Rice is the s_____ food in many Asian countries. 2.Yuan Longping is a l_______ figure in the rice--growing world. 3. They e____________ with new reagents (试剂) and succeeded. 4. 5.He was b_______ up by his grandmother . 6. Scientists have made a major b____________ in the treatment of cancer. 7.When was this novel __________(出版)? 8.The research was ___________ (支持)by the government. (4minutes)

taple

eading

xperimented

I was f___up with his speech.

ed

reakthrough

rought

published

supported