A:应该否定旧事物,支持新事物
B:应注重研究新情况,善于提出新问题,解决新问题
C:必须创造规律以促使现有事物发生变化
D:可以根据自己的需要创造新的事物
As long as I can remember, ___________I called, his wife would answer the phone.