问题
                    
? Do you know the most ancient city in China ─ Xi’an well? ? No, this is the first time I ___________ here.
                            A:came
B:have come
C:am coming
D:come
                        
                        B:have come
C:am coming
D:come
正确答案是:
                        
                        
                        
                    同类题型
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