问题
选择题
—He failed in the exam again.
—He __________his teacher’s advice.
A．should not have followed
B．should not follow
C．mustn’t follow
D．should have followed
答案
答案：D
考查虚拟语气。句意：他在考试中又不及格。——他应该听从老师的忠告。Should have表示过去该做而没做的动作，故选D。