题目

完形填空 Facebook founder Mark Zuckerberg recently surprised Chinese students when he spoke to them in Chinese. In a talk at Tsinghua University in Beijing, Zuckerberg spoke Chinese for about 30 minutes. Although his Mandarin was far from perfect, students and faculty cheered his 1. Zuckerberg's talk raises a large question: is Chinese the language of the future? Could it 2 English as the world's international language? Mandarin Chinese already has the3 native speakers of any language. And, China may soon 4 the United States as the world's largest economy. The 5 of the Chinese language is “垃圾分分类，资源不浪费”．从垃圾产生的源头对废弃物进行合理的分类，有利于资源的回收或减轻对环境的污染．下列废弃物的归类不合理的是（　　） A、易拉罐：可回收金属B、食物残渣：可降解无机物C、矿泉水瓶：可回收塑料D、废旧报纸：可回收有机物