问题
                    
Would you mind my challenging you to a game ofchess— ______.
                            A:Never mind
B:Yes, you arewelcome
C:No, go aheadplease
D:Yes, I’m expecting
                        
                        B:Yes, you arewelcome
C:No, go aheadplease
D:Yes, I’m expecting
正确答案是:
                        