问题
                    
e to work extra hours to finish our plan,_______ the boss can’t allow us to take a day off tomorrow
                            A:having difficulty finding
B:to have difficulty finding
C:having difficulty tofind
D:to have difficulty to find
                        
                        B:to have difficulty finding
C:having difficulty tofind
D:to have difficulty to find
正确答案是:
                         
                        
                        
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