Question

He had dreamed of going there for a long time. But he ______

Answer 1

B

考查虚拟语气。句意：他梦想去那里很久了。但是他不希望他会有这样一段不愉快的经历。“couldn’t+have+done”表示对过去事情的假设，意思是本来能够不做某事而做了。故选B。