Question

11. Had it been possible,  I would have gone to attend to Monica in the hospital, but I     fully occupied last month.

A. had been    B. was

C. am        D.  have been

Answer 1

11.   B考査虚拟语气。这是一个虚拟语气句子，与过去事实相反的假设，意思是"如果可能，我就会在医院照顾莫妮卡"，事实是并没有照顾莫妮卡。but后是真实语气，讲述了原因， 用一般过去时。故选B。