完形填空

    People all over the world eat rice. 1 people in Asia (亚洲), Africa (非洲) and South America 2 it every day of their lives. Some people almost don't eat 3 except rice.

    Rice is a kind of 4. There are more than 7, 000 kinds of rice. Most kinds are water plants. Farmers 5rice in many countries even in the southern part of Russia and in eastern Australia.

    No one really knows where rice 6. Someone in China wrote about it almost 5,000 years ago. Some scientists (科学家) think that rice 7 in West Africa first, but 8 think it 9from India and then was 10to other parts of the world.

生物界有许多奇妙的现象值得我们去探索，某社团同学选取了多种生物，对这些生物的生殖和发育有关知识进行了探索，请回答下列问题：填数字、横线填文字