肯定句：
The movie had been on for half an hour when we got to the cinema.
当我们到达电影院时，电影已经开始了半个小时。
否定句：
The movie hadn't been on for half an hour when we got to the cinema.
当我们到达电影院时，电影还没开始半个小时。
一般疑问句：
Had the movie been on for half an hour when you got to the cinema?
当你们到达电影院时，电影开始了半个小时了吗？
内容全部来源于网络收集，如有侵权，请联系网站删除：QQ：24596024