阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答卷标号为1-10的相应位置上。
We are all in the position of the farmer. If we plant a good seed, we ____（get） a good harvest. If our seed is poor and full of weeds, we’ll get a ____ (use) crop. If we don’t plant anything, we’ll harvest nothing at all. I want the future to be better ____ the past. I don't want it ____ (pollute) by the mistakes and errors ___ which history is filled. We should all ____ (concern) about the future because that is ____ we will spend the rest of our lives. The past is gone and static. Nothing we can do will change it. The future is ___ us and it is dynamic. Everything we do will affect it. Each day it will bring us new frontiers in our homes and in our businesses as long as we recognize ____. We are just at ___ beginning of the progress in every field of human efforts.