【题目】Teachers should bear in mind that each student’s improvement ______.
A. is closely monitored
B. closely monitors
C. has been closely monitored
D. closely monitored
在线课程【答案】A
【解析】
试题分析：考查被动语态。句意：老师们应该谨记在心：每个学生的进步都应该被关注。这是一个事实，用一般现在时，主语与动词之间是被动语态，故选A项。