问题
                    
What were you doing when the telephone rang?—I ______ away my books and ______ to bed
                            A:had just put;was going
B:was just putting;went
C:just put;had gone
D:have just put;gone
                        
                        B:was just putting;went
C:just put;had gone
D:have just put;gone
正确答案是: