Whenever I heard strangers singing out loud，whether it was in the super-market or on the street，I used to think how annoying it was.That was until a few months ago.
   Recently，my daughter Zoe started her second year of middle school with a new sense of awareness，asking me to fix the "little girl" pattern on her wheel-chair seat.Not wanting her to stand out at school，I spent hours filling in pale yellow stars with a black marker，eager to erase whatever childish signs I could.
   Shortly after，Zoe got really sick and had to miss 20 days of school.This meant our days were filled with rushing between hospital appointments and meetings with the school，as we tried to make sure she didn't fall behind on her schoolwork.
   I felt pulled back to a time when she was little and her sickness was a huge part of her life.Back then，it seemed like Zoe lived in hospitals，as she spent so much time in them.No matter how sick she got，however，she always had a positive attitude.
   But this was different：Zoe was no longer singing like she normally did.Zoe usually sings all the time，whether she's playing，riding in the car，or just doing her homework.There was no need for a radio in our house；Zoe provided the music for us.
   Consumed （被折磨） with my motherly worries， it was more concerning to me than her sickness.
   One day，however，I heard her beautiful voice as I was cooking dinner.I stopped what I was doing and just smiled. "Pure delight，" I thought to myself.Her voice slowly grew stronger，and soon，both the car and the house were filled with her music once more.
   How had I not noticed her singing had completely stopped，weeks and weeks ago？Now，thankfully，she's back in school，smiling and singing，and I'm thankful for each and every song she sings.
   These days，whenever I hear a stranger singing a song to themselves，I don't get mad.Instead，I smile，as I know that by singing out loud，they're simply sharing their happiness with the world.

（1）How did the author use to feel when she heard strangers singing？ （no more than 5 words）

She used to feel annoyed

She used to feel annoyed

（2）What do you think Zoe was like？ （no more than 10 words）

She has a positive attitude and loves singing.

She has a positive attitude and loves singing.

（3）What does "it" in Paragraph 6 refer to？ （no more than 10 words）

Zoe was no longer singing like she normally did.

Zoe was no longer singing like she normally did.

（4）Why did the author say "There was no need for a radio in our house"？ （no more than 15 words）

Zoe usually sings all the time and provided the music for us.

Zoe usually sings all the time and provided the music for us.

（5）What does singing mean to people，according to the author？ （no more than 15 words）

Singing out loud simply means sharing their happiness with the world.

Singing out loud simply means sharing their happiness with the world.