Question

I didn’t know that he was a cheat, or else I ________________ him. A．should have believed B.

I didn’t know that he was a cheat, or else I ________________ him. A．should have believed B．shouldn’t believe C．wouldn’t have believed D．couldn’t believe

Answer 1

C

试题分析:句意：我不知道他是一个骗子，否则我就不会相信他了。“情态动词+v原型”用来表述现在或将来的事情；而“情态动词+have done ”用来表示对过去发生事情的推测，根据前句的时态可以排除BD选项。Should have done “本应该做某事”不符合句意，此处是含蓄的虚拟语气，答案选C。