完形填空。阅读下面短文，掌握其大意，然后从各题所给的四个选项A、B、C和D中，选出最佳答案。
When I was a kid，my sister and I used to have ice cream for dessert.One day our grandpa came to visit.Grandpa always had unique opinions on things，1.________ his words made us look at the world just a little differently.This time，his joyful words changed my outlook on life in 2.________ way that stays with me to this day.My sister and I were having bets 3.________ who could finish their ice cream first.With a smile，Grandpa said，“4.________ would you want to do so? Actually，5.________you eat slowly，it'll last longer.You should have a competition to see who can finish last.”
