听对话和短文，选择正确答案。 1. Where has Mr. Li been? [     ] A: He has been to Singapore. B: He has been to Korea. C: He has been to Japan. 2. How long has Mr. Li been away? [     ] A: Three months. B: Two months. C: One and a half months. 3. How did he get there? [     ] A: he went there by train. B: He went there by ship. C: he went there by plane. 4. What did he do there? [     ] A: He dived and swam. B: He went shopping. C: He had lessons for the students there. 5. Why can't they go on talking? [     ] A: Because the women had to leave. B: Because it's time for class. C: Because the man had to go home.