時序： 1. She left. 2. Henry arrived. 3. So she did not see him. 正確答案：B 「過去完成式」she had left在「過去簡單式」he left there之前發生 先離開的她沒看到後來到的他（時序合理）
Because I have to walk carrying a ton of luggage to the Herbis Station to take the bus on the checking out date, are there any staff in the hotel could help move my luggage to the station . Thanks.
...more example :- =============== I happened to meet an old friend at the railway station this morning. I met an old friend by chance at the railway station this morning.