When Jimmy was a boy,he always liked watches and clocks 1 when he was eighteen years old ,He went 2the army ,and after a year,he 3 to teach himself to mend(修理) watches.A lot of his friends 4 him broken watches,and he mended them for them.Then his captain 5 about this ,and one day he brought him a watch too,6 said,‘‘My watch was stopped.Can you mend it for me,’’Jimmy said,‘‘Yes,sir,I can..’’After a few days ,he brought the watch 8 to the captain.‘‘One pound,sir,’’Jimmy answered.The he took a small box out of his pocket and gave it to the captain,saying,‘‘9 are three wheels（機輪) from your watch.I didn’t find a place for them 10 I put everything back.