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．