The palace caught fire three times in the last century , and little of the original buliding________now . A. remains B.is remained C. is remaining D. has been remained 答案:A 解析: 考查时态。remain在这儿意思是“剩下,余留”,为不及物动词,整句话是对现在事实的陈述,所以用一般现在时。选 A项。下列所估测数据中最接近生活实际的是( )A. 一个鸡蛋的质量约为500gB. 课桌的高度约为2mC. 一块橡皮的质量约为10kgD. 中学生做一套眼保健操的时间约为5min