单选题 He was rather vague about the reasons why he never finished school.
  • A. bright
  • B. unclear
  • C. general
  • D. bad


【正确答案】 B
【答案解析】[解析] vague：含糊的、不明确的，等于unclear；bright：聪明的、光明的；general：一般的、大体的；bad：糟糕的、坏的。