Question

---Why didn’t you reared him of the possible danger?---But what &...

---Why didn’t you reared him of the possible danger?---But what otherwise? He never listens to me. A．could I do B．could I have done C．should I do D．must I have done

Answer 1

B

试题分析：考查虚拟语气：句意：——你为什么不告诉他可能的危险？——但是告诉他又能怎样？他从来不听我的。otherwise相当于if I had reminded him of the the possible danger可知是和过去事实相反的虚拟语气，要排除A和C。must have done是对过去的事情的推测，could have done可以是对过去的虚拟。选B。 点评：在虚拟语气中，有时假设的情况并不是以条件状语从句的形式表示，而是通过相应的介词或连词来表示，如 without， but for， or， but， otherwise 等。