英语选择题一道求解_________ for the free tickets, I would not have gone to the film so often. A.If it is not B.Were it not C. had it not been D. If they were not为什么选C?虚拟需要倒装吗?
问题描述：
英语选择题一道求解
_________ for the free tickets, I would not have gone to the film so often.
A.If it is not B.Were it not C. had it not been D. If they were not
为什么选C?虚拟需要倒装吗?
答