听材料，回答问题。
（1）When did the headmasters begin to eat with their students？
A.On March 1^st.
B.On April 1^st.
C.On May 1^st.
（2）What is the purpose of the rule？
A.To make food safer in schools.
B.To help students eat more in schools.
C.To make headmasters closer to the students.
（3）Who can also eat with students？
A.Reporters.
B.Producers.
C.Parents.
（4）What should headmasters do after talking with students？
A.Give advice.
B.Do some cleaning.
C.Talk with parents.
（5）What did Nick's headmaster notice about the students？
A.They talked loudly while eating.
B.Lots of them didn't eat in the dining hall.
C.They ate much meat but few vegetables.