Dad said to his son, "ray kroc, it's easy for you to clean the table, but you can't do it well. How do you become a boss? " Ray kroc's face turned red.

He will never forget his father's words. After that, he wiped the table with five pieces of cloth every time. He always works very hard. The boss liked him very much and made him the new owner of the restaurant. Ten years later, ray kroc opened his own restaurant-McDonald's.

After 1 (before 1, I don't quite understand what it means! )