1.They were visiting New York.2. They wanted to take a walk and to see the city.3.Their fear was getting lost.4.They were lost.5.They went up to a police officer and asked for help.6.No,they didn't.7.No,he\she didn't.8.They had written“Stop”and “One Way”on their notbook.9.单行道10.停止 （第9、10是回答汉语意思么？）
