21．While I tried hard to fight against my terrible cancer，my husband passed away due to a heart attack.I was so sad.My mother came to stay with me.I wondered what I'd do with my 86-year-old mother.
A week after she arrived，I asked，"Mom，why don't you crochet（用鉤針編織）anymore？" She said she didn't know what she could make.I advised，"How about flowers？We can share them with others." Mom nodded.While she worked，I offered assistance.Before long，Mom crocheted many flowers and we sent the m to friends and cancer patients.In the next few weeks，several thank-you notes arrived in our mailbox.
Later，Mo m wanted to crochet the butterfly.She created one and sent it to my friend Yvonne.She loved it and attached it to her hairclip.One day，she called，"So me volunteers were sent to Haiti to help with the disaster there.Could you send me another butterfly？I wanted some volunteers to bring the butterfly to a girl in Haiti to offer her warmth and hope." Then we sent another one to Yvonne and she again attached it to a hairclip.The hairclip was later brought to a girl in Haiti.The girl，called Mary，had felt sad and hopeless after suffering from the disaster.But when she received and wore the butterfly hairclip ，her face brightened.And her bright eyes showed more hope for the future.
I was excited to know that Mom's creativity was encouraging people like this girl.But some people who didn't know us well thought it was a waste of time crocheting these things.Surely，
I couldn't see eye to eye with these people on my mom's efforts of crocheting.Her project was meaningful.It made my mother have a purpose in life.And helping her carry out her project，I felt I led a richer and more hopeful life myself.
（1）What made the writer feel sad at first？（No more than 10 words）
（2）Why did the writer and her mom receive some thank-you notes？ （No more than 10 words）
（3）How did Mary feel when wearing the butterfly hairclip？ （No more than 5 words）
（4）What does the underlined part in the last paragraph probably mean？（No more than 5 words）
（5）What do you think of the author and her mother？Please explain it in your own words. （No more than 20 words）
