Question

【题目】If it_________ for his invitation the other day, I should not be here now.

A. had not been

B. should not be

C. were not to be

D. should not have been

Answer 1

【答案】A

【解析】本句属于错综条件句的虚拟语气。if从句表示与过去事实相反，所以使用过去完成时，主句表示与现在事实相反，所以使用＂情态动词+动词原形＂。句意：如果不是因为前几天他的邀请，我现在就不会在这里了。故A正确。