问题
                    
Excuse me. Which is the way ______ the post office, please? —Sorry, I don’t know. You can ask the policeman _______ help. [ ]
                            A: to; to 
B: to; for
C: for; for
D:for; to
                        
                        B: to; for
C: for; for
D:for; to
正确答案是: