Jack is in bed. Mr. Smith sits beside him. "What kind of day do you have today?" Mr. Smith asks. "It is a bad day for me," Jack answers. "I have a fight with Tom. Then the teacher calls you and tells you about it, right?" "Yes , part  of the day is bad," Mr. Smith says. But there are good parts, too. Now it is time to go to sleep. So tell me the best thing to you today. Jack is happy and he says, "After school, I go swimming. I make a new friend in the swimming pool." "I am happy you have a good time," Mr. Smith says. "Think about it before you go to sleep. Now I'm going to turn off the light . Have a nice dream!" "Good night, Dad," Jack says. Every night Mr. Smith and Jack have a talk like this. Every night Jack answers the same question, "What is the best thing to you today? Every night Jack goes to sleep thinking about the best thing. It's really a good way to end  a day." From this story, we can know  _  .
Jack is a student Jack isn't a smart boy Mr. Smith is a teacher Mr. Smith has a lot of words