问题
                    
I think it’s going to be a11 argument—Yesit could be—I wonder we can do about it
                            A:what
B:how
C:when
D:whether
                        
                        B:how
C:when
D:whether
正确答案是:
                         
                        
                        
                    同类题型
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You must have missed the first train yesterday, ________ you?
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