**能力提升
阅读下面短文，从短文后所给各题的四个选项（A、B、C、D）中，选出能填入空白处的最佳选项。
A
Five-and-a-half years ago my father was suddenly rushed to the hospital for open heart surgery. At the time, we had no 1 呼吸器) for 72 hours. that he was seriously ill. The surgery did not 2 well and he remained unconscious. Due to the laws of our state, we were 3 to keep him on a ventilator (
