s1: what should we do to help the elder in our community?
　　Sample
　　I like to help the old to do the following stuff. First, give them a hand with house chores. Some of them have trouble moving around, if I assist them with housework, they would be really grateful. Take my neighbor as an example, she has been lying on bed for years, I always help her cook and sweep the floor. Second, reading to the elder is a good way to help them get rid of loneliness. Some of the old people live far away from their sons and daughters, and they feel isolated. If I read stories to them, they will feel released and happy, and they rebuild their confidence in life.
　　s2: which do you prefer? watch a movie silently or chatting with others？
　　Sample
　　I prefer to watch a movie silently for the following reasons. First, I'm a movie buff. Sometimes I go to the movie theatre by myself. That way, I can enjoy the movie and relate the story to my life. If I were accompanied by someone else, I would be disturbed while watching the movie. Last time, I went to the cinema with my classmates, they actually annoyed me. They kept talking during the movie, having popcorns and even taking photos during the movie. I was ashamed of staying with them because I heard other people were judging us. I won't watch movies with them again, and I think it's definitely impolite to talk while others are enjoying themselves.
　　s3: The school should list the menu in the canteen. firstly, the student could know the ingredients of the dish and make a healthier choice. secondly, the students could eat those food at home and practice cooking skill. The woman agrees with that suggestion. firstly, the student could avoid choosing the unhealthy dishes like sauce with abundant sugar. secondly, the students should have cooking skills after graduation and that policy could help them enhance cooking skills.
　　s4: the professor illustrates the concept of bidirection, which means the kids and parents influence each other. the professor make an example that Max always yells and shouts but her parents always smile back to him. His parents spend more time on him to teach and influence him.
　　s5: a student would prepare for an exam tonight. but an author would make a presentation at the same time. he has two opinions . 1 does not go to the presentation 2 listen the presentation and prepare the exam after the presentation. I think the first opinion is better because the student could have a good sleep and it could be helpful for the exam.
　　s6: the professor illustrate why many insects release chemical material. firstly the insects do so to locate where the food is .secondly, the insects do so to mate with each other.