【题目】Under the new schedule, teachers of primary and secondary schools must _____each class on time instead of adding extra lessons．
A. cancel B. advocate
C. postpone D. Dismiss
在线课程【答案】D
【解析】选D，cancel 取消；advocate 提倡；鼓吹 postpone 推迟 ；dismiss 解散；解雇；离开。新的制度下，中小学教师必须按时下课，不能推迟。Dismiss延伸为下课。