Shoes Maintain

Last Sunday morning, my best friend David and I went to the school’s playground to do some exercise. David is a good athlete, and he always broke the school’s record in the 100-meter run. I can not run faster than him, but I like to run with him and talk with him.
I remember when we finished running, David asked me one thing, that is, he asked me whether I know something about sports shoes? I told him that I was an expert of telling different kinds of cheap mbt shoes, and I can help him indentify whether the sports shoes are fake or true. “Is that true? Are you sure you know every brands of shoes?” David said. “Of course, I can promise you, if I cannot tell the brands of them, I will give you 5 dollars!” I said with a confident face. “Alright, please tell me what brand of the shoes I am wearing right now. Please remember the words you promise me.” He said and smiled. “Ok, that’s so easy, I will tell you immediately. It is a Nike brand…No, It is a Adidas brand…En…Sorry, I don’t know what brand it is. Please forgive me.” I said and put down my head. “Oh, you are not an honest man, give me the money and I will tell you the truth.” He said and reached out his right hand. So I gave him five dollars. “Well, let me tell you what brand my shoe it is. It is MBT shoe, I bought it in the MBT shoes shop last week, although the shoes have a discount of 10%, it still cost me 100 dollars. But I like it very much, because it is comfortable and make me run faster and faster. So how do you think my new shoe?” He asked. “Wow, it is amazing and cool, I would like to buy a new pair of MBT shoes, could you tell me where you buy it?” I asked. “Ok, but you have to give me another five dollars first, then I will tell you the place.” He said. “What? Another five dollars? Are you crazy? But are you serious? Because I really want to buy a new pair of shoes, I like new things very much.” I said and gave him another five dollars. “Alright, the MBT shoes shop is in the downtown, it is next to the cinema, I have heard that there is an activity of discount MBT sale at next weekend, you can go and see it. You are so cute today! But I like you!” He said and tackled the five dollars into his pocket.
Suddenly, the school bell rang, and it was time to leave the playground, because David and I have to grad some food for breakfast. So we left the playground and went to a bread shop to eat some bread and drink some milk in order to replenish the nutrition.