This is the first time we (have seen) a film in the ciname togeth_英语解答

This is the first time we (have seen) a film in the ciname together as a family 为什么用have seen

人气：497 ℃　时间：2019-09-17 07:10:17

解答

It is/was the first time……是与完成时在一块用的.过去进行时是表示某个时间正在进行的动作.
参考见网页