问题
                    
The opening ceremony of the 29th Beijing Olympic Games was _____ that everybody was greatly impressed_____ it
                            A:a such big success; at
B:ig success; on
C:cess; by
D:so big a success, with
                        
                        B:ig success; on
C:cess; by
D:so big a success, with
正确答案是:
                        