A:Have you been in America long , Hellen ? B: No . Only for a couple of weeks . A: Where are you going to study ? B: I am going to register at Harvard next month . A: What are you going to major in ? B: I am going to major in tourism . What about you ? How long have you been here ? A: For <MASK> . B: Well . You should be able to give me some advice on where to stay . At the moment , I am staying in a hotel which is far away from the school .
nearly four years nearly a couple of weeks nearly seventy years