— Excuse me, could you tell me where I could make a call?— Sorry, I’m a stranger here.— ____.
What did he say? I don’t know what________.
I told your friend how to get to the hotel, but perhaps I______have driven her here.
I’m sorry to have hurt you, but I didn’t do it________.
It is the first time that I_______to Beijing.
----Must I do well in all the subjects, Mum? ----Sure, baby! As an old saying goes, knowledge is _________.