短文改错（共10小题，每小题1分，满分10分）
One day a child was playing with a vase in great value． 小题1:
He careless put his hand into it．Hard as he tried, 小题2:
he could not pull it out．His father tried his best, too． 小题3:
but their efforts were in a vain．They were thinking of breaking 小题4:
the vase when the father said, "Now, my son, why have 小题5:．
one more try? Open your hand or hold your fingers out 小题6:
straight as you see I doing, and then pull．" To his 小题7:
surprise, the child says, "I can’t hold my fingers straight 小题8:
like that, because I don’t want to drop my penny．" Thousand of us 小题9:
sometimes are so busy hold on to the world’s worthless ． 小题10:
penny that we cannot achieve liberation．
