sentence_level1=[
    "I have no idea.", 
    "It is very tasty.", 
    "Thank you.", 
    "It suits you well.", 
    "It\'s very tough"

]
sentence_level2=[
    "What sports are you good at?",
    "Have you ever tried Korean food?", 
    "May I take your order?",
    "I want to be an English teacher someday.",
    "This is a little present for you."

]
sentence_level3=[
    "I\'m looking for the post office.",
    "Let\'s ask a clerk at the information desk.", 
    "I\'m supposed to make a deposit today.", 
    "Take these pills after meals.",
    "Let\'s go to see a movie tonight."

]