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There is a post office _____ the street corner .
A. on B. in C. behind D. across
There is a post office ________ the street corner．
A．on
B．in
C．behind
D．across
A: Excuse me. Can you tell me ______ to the post office?
B: Of course! Go ______ the street, then ______ left at the corner. You can see a building ______ a book store and a hospital. It is the post office.
A: ______.
B: You're welcome.