請閱讀下面這篇文章，根據(jù)所提供的信息，回答5個問題。要求所寫答案語法正確、語義完整。
    When I was in primary school，I was very fat and didn't like doing exercise.I felt tired and bored when doing any kind of exercise.Because I hardly did any exercise，I often felt sick and went to see the doctor.What's worse，I was absent from school from time to time，so I couldn't catch up with others.And my poor health made it even more difficult for me to keep on exercising.The cycle repeated itself.My parents were really worried about me.
    One day，after having supper，my father came and asked me to have a walk with him in the park.My father insisted that for people with very poor health，it was difficult to take up running and other sports at the beginning，but they could start from walking and increase endurance （耐力） little by little.With his encouragement，I agreed and we went out together.It was hard for me to walk for half an hour.I wanted to give up，but my father encouraged me to keep on walking.
    From then on，I was often asked to walk with my parents.To my surprise，I could walk for an hour in the fourth month.How proud I felt!I loved taking exercise gradually.Now I am a perfect runner in my middle school.I lost all the fat and I am a healthy girl now.
    My parents once taught me that during all my life，I might face some difficulties，but I shouldn't be afraid of them.What I should do is to try to face them bravely.

（1）How did the writer like doing exercise while studying in primary school？

It was tiring and boring.

It was tiring and boring.

（2）Why did the writer fall behind others at school？

Because she was absent from time to time.

Because she was absent from time to time.

（3）Who encouraged the writer to take up doing sports？？

The writer's father.

The writer's father.

（4）How long could the writer keep walking in the fourth month？

For an hour.

For an hour.

（5）What did the writer learn from her own experience？

Facing difficulties bravely.

Facing difficulties bravely.