21.D 第一段because business was not very good
22.C 第一段and many of the students come to my store to buy their clothes
23.D It is closer to my home, and there is a food store on the next block, so it is convenient for me to go shopping after work..可以看出，不是因为离家近，而是因为有food store。
24.A for sale：出售
25.D 店主将店子粉刷，作新窗帘，雇人建试衣间等，做了很多改进的事情。所以选D。