听下面一段对话，回答1-3题。 1. What was the woman's main purpose in going to New York? A. To visit an American family. B. To learn English. C. To go sightseeing. 2. When did the woman come back from America? A. On July 5th. B. On June 5th. C. On August 25th. 3. What in particular did the woman like about the American classes? A. The teachers were serious. B. The students were quite free. C. Listening, reading, speaking and writing were all taught.