it not been for the free ticket, I would not have gone to the cinema.
A. Were
B. Should
C. If
D. Had
网友回答
A. Were
B. Should
C. If
(答案→)D. Had
解析：考查虚拟语气：if的非真实条件句可以省略if，将should，were，had提前到主语前面，从主句I would not have gone to the cinema.可知是和过去相反的动作，填had，相当于if it had not been for the free ticket，句意是：如果不是因为免费的票，我就不会来电影院了。选D。