2. Student A is preparing for the final examination. He/she had some difficulties in English. So he/she asks Student B for help.
3. Student B took part in the college sports meet and he/she lost in the 800-meter run. He/she is upset. Student B is trying to help him/her build self-confidence.
5. Student A and Student B met for the first time at school. They are talking about the college life.
6. Student B plans to visit famous places in Chengdu and he/she asks Student A if Student A can lend a camera to him/her.