My 8-year-old daughter is making an experiment. She has been

My 8-year-old daughter is making an experiment. She has been making her own colorful smile cards and often takes them with her everywhere.
Last Sunday, I took my kid to go shopping with me. She was hoping to see John, who is an elderly man and gives out samples. We see him from time to time and he is so happy and friendly. John wasn’t at the store on Sunday, so my daughter decided that it would be a good idea to distribute her smile cards to the store’s other employees.
So she did. In the produce department, she gave a card to a young man and she hoped it would make him smile. And he smiled at her and thanked her. Then she came across an older gentleman who looked rather impatient. And she snuck a card into his cart on top of his groceries, remarking to me later that he looked at her suspiciously as if she was dumping trash in his cart. But I thought he would be happy later.
When we got back from our shopping trip, she had run out of cards. She was walking by a woman with two babies in her cart. My daughter smiled at her and the young mother smiled back. My daughter came to me and said excitedly, “Mom, I just realized something. You don’t need cards to make someone smile. All you need to do is make eye contact and smile into their eyes and they will smile back.”
What a beautiful lesson my daughter reminded me of. You are never too young or too old to experiment with kindness and smiles.
小题1:At first, the writer’s daughter made an experiment by ______.

A．giving smile cards	B．giving samples
C．making eye contact	D．giving groceries

小题2:According to the text, John was a man ______.

A．who is very young and lively	B．who may be a salesman
C．who is in trouble and needs smiles	D．who is never seen to smile

小题3:The underlined word “distribute” in paragraph 2 probably means ______.

A．make up

B．tear up

C．give out

D．sell out

小题4:From the text, we can learn that ______.

A．John got a smile card from the writer’s daughter

B．the older gentleman would smile later after he got the smile card

C．we could make others smile only by giving them what they wanted

D．the mother with two babies smiled because she got a smile card