问题
                    
’t realize how popular the restaurantwas until I made a reservation the other day.—-I beg your pardon, but when
                            A:was you realizedit
B:it was that you realized it
C:you realized it
D:was it that you realized it
                        
                        B:it was that you realized it
C:you realized it
D:was it that you realized it
正确答案是:
                        