【题目】One third of the country __________ covered with trees and the majority of the citizens __________ black people.
A. is; are B. is; is
C. are; are D. are; is
在线课程【答案】A
【解析】句意：这个国家的三分之一覆盖着树木，大多数居民是黑种人。分数/the majority of +名词作主语，谓语与名词保持数的一致，因为the country为单数，所以前一分句谓语为单数，而the citizens为复数，所以后一分句的谓语为复数。