【题目】It remains to be seen whether online teaching will ________ traditional classroom teaching.
A. replace B. rebuild
C. recover D. reserve
在线课程【答案】A
【解析】考查动词辨析。句意：在线教育是否将会取代传统的课堂教育还有待观察。A. replace取代；B. rebuild重建；C. recover恢复；D. reserve储备，预定。根据语境，故选A。