In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

[Q]: Article: I was an introvert by nature. For as long as I remember, showing a sincere smile when meeting someone had never been easy. When meeting people, instead of being excited, I often felt upset or self-disturbed. But we all know having friends is important. The more friends you have, the more opportunities you get, no matter whether it's a job opportunity, a romantic relationship, or a business partner. So a smile is important to making others feel comfortable. Mother Teresa said, "Every time you smile at someone, it is an action of love, a gift to that person and a beautiful thing." The smile I'm talking about is not to make a face to someone. I'm talking about those wide smiles you make when meeting old friends. So I've discovered a trick. I call this technique "Oh, it's Jamie!" When I meet someone, I imagine him as an old friend of mine called Jamie. He was my first friend when we were still kids. It's no secret why my smile is as wide as I can possibly make. And the best part, whenever you're friendly to others, they are friendly in return. You're not hearing this from me. A research which was done early by scientists actually backs this claim. So do remember to give it a try.
Answer: very difficult
[A]: According to the author, showing a sincere smile is _ .

[Q]: Article: Hercule Poirot looked over the small gate which gave admission to Pine Crest. It was a modern nicely-built house. It was on a hill top, and the hill top was planted with a few sparse pines. It had a small neat garden and a large elderly man was watering with a big tin. Spence's hair was now grey all over. He had not shrunk much in girth , though. He stopped watering and looked at the visitor at the gate. Hercule Poirot stood there without moving. "God bless my soul," said Spence. "It must be. It can't be but it is. Yes, it must be Hercule Poirot!" "Aha," said Poirot, "you remember me. I'm grateful." Spence abandoned the watering can and came down to the gate. "What brings you down here?" "What has brought me to many places in my time," said Poirot, "and what once a good many years ago brought you to see me. Murder, Spence." "I'm done with murder since I retired," said Spence, "except in the case of weeds. Killing weeds is never easy as you think, something's always wrong. How did you know where to find me?" he asked as he opened the gate and Poirot passed through. "You sent me a Christmas card. It had your new address on it." "Ah yes, so I did. I'm old-fashioned, you know, I like to send round cards at Christmas time to a few old friends. I'm an old man now." "We both are." "Not much grey in your hair," said Spence. "I take care of my hair with a bottle," said Poirot. "There is no need to appear in public with grey hair unless you wish to do so. By the way, why have you come to live in Woodleigh Common?" "As a matter of fact, I came here to join forces with a sister of mine. She lost her husband, her children are married and living abroad. So I moved in here. Pensions don't go far nowadays, but we do comfortably living together."
Answer: Poirot's recent life
[A]: From their dialogue, we can learn about _ .

[Q]: Article: My grandmother pointed at a picture of a six-year-old me and asked, "Sweetie, do you see that?" Studying my younger self, I smiled and nodded. "That's my granddaughter," Grandma said. "She lives in Connecticut. She must be.'.Well, I've forgotten how old she'd be now!" My smile froze and my hands began to shake. My grandmother had Alzheimer's disease. It seemed impossible for her to be unable to look after herself. Gradually, not remembering where she placed her glasses became not remembering where her house was, which became not always remembering my name. My birthday gifts from grandma used to be highly expected; she always knew exactly what to get and her cards would make me smile. Now, my gift from her is really from my father, who buys a present in her name since she doesn't remember when my birthday is.^birthday card without her writing just reminds me that my grandmother isn't the same anymore. I feel sad about it and I find a great comfort through writing. Writing my memories on paper helps me to deal with what is happening and to see Grandma as the~she truly is. Strangely enough, recording my sadness reduced~of the pain. I know it's her strength that pulls me through the hard times. So now, when I sit on the chair next to Grandma and know she can't remember my name, I swallow the bitter medicine of disappointment and smile.
Answer: couldn't remember her
[A]:
The author's smile froze because her grandmother _