I would have gone to visit him in the hospital had it been at all possible, but I ________(be) ...

Question

I would have gone to visit him in the hospital had it been at all possible, but I ________(be) fully occupied the whole of last week.

Answer 1

was

本道题目的前半句话是对过去情况的一种假设，但事实上并没有发生；而事实上没有发生的真实原因是句子的后半部分由but引导的转折句所表述的真实情况。因而but所引导的句子中应该用表示与过去事实相符合的表陈述的时态，即一般过去时。