Oh, I had been to the airport that time.
哦，那时我已经去机场了。
My friend learned that the police had been to the flats.
我的朋友得知警察来过大楼。
I had been to Penn only one day, in October of my senior year.
我只在宾夕法尼亚州立大学呆过一天，那是在我毕业那年的十月份。
