问题
                    
I know Mr Brown; we ______ to each other at an international conference
                            A:are introduced
B:have been introduced
C:were introduced
D:had been introduced
                        
                        B:have been introduced
C:were introduced
D:had been introduced
正确答案是:
                         
                        
                        
                    同类题型
                    I hope you enjoyed the film last night— How on earth do you know I went to a film? I _____ you
May I _______ you to carry the bag for me —– No problem .
Which of the following sentence is the Wrong translation for “我突然想起一个好主意”?
, it’s raining again What a coldday!—So it is It’s really too cold _______May