单选题 The school authorities and teachers ______ over the advantages and disadvantages of the educational system.
  • A. were always argued
  • B. were always arguing
  • C. had always argued
  • D. had always been argued
【正确答案】 B
【答案解析】[解析] 本题主要考察动词时态的运用。该句的主语是“school authorities and teachers”，和谓语动词argue是主动的关系，且选项中的“always”含义是经常、总是，它修饰的谓语要有一个持续性的过程。所以argue选进行时态。