D Mr. Green went home very late from work. finding his 5-year-old son. Tom, waiting for him against the door. "Can I ask you question. Daddy?"Tom asked him seriously "of course, you can. dear." "How much money do you make an hour?" "If you must know, I make $20 an hour." "Oh, the little boy replied, with his head down. He thought for a moment, looked up and said,"Daddy, could you lend me ten dollars?" Mr. Green shouted angrily. "If you ask for money to buy some useless toys, please go straight to your room. I have no time to play the boring games with you. After saying that, he went into the bedroom. About one hour later, Mr. Green calmed down. He thought maybe Tom really wanted to buy something. So he went into Tom's bedroom. "I'm sorry I was too hard on you just now. Here's ten dollars for you. "Thanks, Daddy. Then he took out some coins. "Why do you want more money since, you already have some money? "Because I didn't have enough, but now I do Now I have twenty dollars. Can I buy one hour of you time? Please come home earlier tomorrow. I want have dinner with you together, Daddy.