题目内容：

    The care center told us Dad's case was hopeless. Mom took him home and his spirits lifted under her care. Several months later, we decided to fly out and give my mother a break from nursing him.

On the last day of our trip, after finishing his walking treatment, I suggested that he "exercise" his fingers by playing his piano, but the fingers that had once flown over the keys with ease could barely strike one note. Paralysis（瘫痪）had taken away the number-one joy in Dad's life.

Helping him from his wheelchair to the piano bench, I placed his hands on the keys and the list on the piano. Seeing his stiff fingers devastated me and Dad. I lay back in my chair, closed my eyes and expected the worst. I couldn't believe my ears when The War We Were rang out, flowing with feeling and no mistakes. He continued playing down his list.

Quickly wiping my eyes, I felt grateful for what had taken place. I never thought I'd hear my dad's beautiful music again. Dad couldn't grasp what had happened during that hour and seemed confused. Instead of getting back in his wheelchair, he asked me to turn him around on the bench so that we could talk.

Starting with his earliest childhood memories, Dad shared his life story, telling tales I'd never heard before. It was a magical time for us, and we took turns wiping our eyes. When he became silent, I knew this moment had ended.

For the next hour, I found myself reliving priceless memories. Happy tears flowed as my father played every song I'd ever heard growing up, including favorites that we had danced to as children. Apparently, the wonderful stories he'd just shared had sparked his memory.

1.Why did the author decide to go on a holiday?

A.To ease his father's feeling of hopelessness.

B.To accompany his father for the last family trip

C.To give his mother a rest from attending his father.

D.To help the doctor treat his father for his paralysis

2.What does the underlined word "devastated" in Paragraph 3 refer to?

A.Delighted. B.Interested

C.Worsened. D.Discouraged.

3.What made the author's father puzzled?

A.He still remembered his childhood dreams. B.He could play his familiar music on the piano.

C.He was left alone at home with the author. D.He could stand up without the author's help.

4.What did the author do after his father got silent?

A.Reflect on his old memories. B.Choose his father's favorite music.

C.Dance to the music his father played. D.Take his turn to take care of his father.