only when I receive the photo did I realize that four years had past中的past还是passed 为什么?

1. passed,因为past,是介词.
2. did I, me 不能做主语.
3. graduation photo of junior high school
祝你学习进步,更上一层楼! (*^__^*)
不明白的再问哟,请及时采纳,多谢!graduation photo of junior high schooljunior high school graduation photo都可以吗？4.time travels faster than I thought对不对？那时间比我们想象的要过得快怎么翻译？junior high school graduation photo 不符合英语习惯。4. 时间比我原来认为的要过得快。是“我”不是“我们”，thought是过去时，，翻译是注意把它翻译出来。.... 我是想中译英，不是英译中。。。。时间比我们想象的要过得快的翻译。。。Time flies faster than we imagine.就可以了。