In the five years sincethe opening of Colson’s, a non-discount department store, a new store hasopened at the location of every store in the shopping district that closed because it could not compete withColson’s. that closed 中的that指代的是Colson's还是a new store呢? 我觉得这句话的意思可能是:自从C(不打折商店)开业5年之内,新的商店会在倒闭商店的址上开张,因为新商店不会与c竞争。