Henry was worried. This was his first time to go traveling by air. He did not know how to find his seat, so he went to the airhostess (空姐) and asked ,'Could you help me? I can't find my scat. 'The air hostess showed him the seat and told him to sit down and fasten the seat (系好安全带). She told Henry not to move about when the plane was going up. And she also said that Henry's ears might feel a little strange, but he didn't need to worry about it because many people felt like that. When the plane was flying very high, Henry could stand up and walk round. He could either read books, newspapers or see films. The airhostess would bring food and drinks. Henry, could enjoy the flight and arrive home soon. Which of the following is right?