【题目】I would have gone to visit him in the hotel had it been at all possible, but I ________ fully occupied.
A. were B. had been
C. have been D. was
在线课程【答案】D
【解析】
考查虚拟语气和时态。句意：如果有一丝可能，我都要去看他，但是我那时太忙了。根据前句最后“would have gone”可知本句是与过去事实相反的虚拟语气，而but的后面句子要使用陈述语气，所以要使用过去时。故D项正确。