语法填空

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.

     We are all in the position of the farmer.If we plant a good seed, we (1)________ (get) a good

harvest.If our seed is poor and full of weeds, we'll get a (2)________ (use) crop.If we don't plant

anything, we'll harvest (3)________ at all.

     I want the future to be better (4)________ the past.I don't want it (5)________ (pollute) by the

mistakes and errors (6)________ which history is filled.We should all be concerned about the future

because that is (7)________ we will spend the rest of our lives.

     The past is gone and static.Nothing we can do will change it.The future is (8)________  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  (9)________. We are just at (10)________the beginning of

the progress in every field of human efforts.