Students and teachers share conversation about food came, students learn what's out there. Students help each other, and the teacher said that today's students will learn what types of food are useful/not useful to the body.
Teachers and students together to talk about food, the students have learned and what I do. Students to answer And teachers say that students today learn that foods have useful / useless body.
The teachers and students together to discuss food that students learned that what students can answer. And the teacher said today, students will learn useful / useless any type of food to the body.