问题
选择题
Look! That fellow is too sleepy to work. He ______ up reading until midnight.
A．mustn’t stay
B．mustn’t have stayed
C．ought not to stay
D．should not have stayed
答案
答案：D
考查情态动词+have done的用法。句意“看！那个家伙太困了以至于不能好好工作。他本不应该熬夜看书。”shouldn’t have done“本不应该做却做了某事”。故选D。