for the free ticket I would not have gone to the theatre so often.A. Were it notB. Had

问题补充：

for the free ticket, I would not have gone to the theatre so often.

A. Were it not

B. Had it not been

C. Had not it been

D. Were not it

答案：

A. Were it not

(答案→)B. Had it not been

C. Had not it been

D. Were not it

解析：考查虚拟语气的省略倒装式，Had it not been =if it had not been，要不是因为，hi和过去相反的虚拟条件句，句意：如果不是因为免费的票，我就不会这么经常去戏院了。选B。