填空题 In Uruguay, {{U}}where{{/U}} Alejandro is from, houses and apartments are traditionally bought {{U}}in cash{{/U}}, in US dollars, and represent the pinnacle of financial success and security in {{U}}an economy{{/U}} that has been {{U}}riddled with{{/U}} booms, busts, devaluations and inflation. A. where B. in cash C. an economy D. riddled with