Sir, you should ________ at the red light, but you didn’t.A．stopB．have to stopC．

题型：不详难度：来源：

Sir, you should ________ at the red light, but you didn’t.

A．stop	B．have to stop
C．have stopped	D．not have stopped

答案

C

解析

考察虚拟语气。句意：先生，你应该在红灯亮时停，但是你没有。表示对已发生的事情的虚拟用shouldn’t have done 故选C。