Sorry, sir, but you can’t go any further without______boarding pass. Please obey ____ rule.
____to my regret, I am unable to accept your warm invitation.
The boy was______eager to get a geography book.
—— Excuse me, could you tell me the way to the station? —— The station? Take the second turning_____and______.
I was wondering what to do and______Mr. Wang came in.
David jumped___to get the first___the beginning of the sports.