1 must not be late. 2 school seriously listen to the teacher, called the work on time. 3 Keep the classroom clean. Four pairs of teachers polite. 5 and students friendly. 6 not allowed to eat in the classroom.

1 Do not allow late. Class 2, carefully listening to the teacher lecture called operation on time. Keep 3 classroom clean. 4 The teacher politely. 5 And the students get along well with each other. Eat 6 are not allowed in the classroom.

1 does not have to be late.2 attends class listens to teacher to teach earnestly, calls the work on time.3 maintains the classroom to be clean.4 pair of teachers have politeness.5 and schoolmate in a friendly way is together.6 does not have to eat the thing in the classroom.

1 not to be late. 2 listening to the teacher carefully in class, called job on time. 3 keep the classroom clean. 4 be polite to teachers. 5 and classmates in harmony. 6 not allowed to eat in the classroom.

1 not to be late. 2 listening to the teacher carefully in class, called job on time. 3 keep the classroom clean. 4 be polite to teachers. 5 and classmates in harmony. 6 not allowed to eat in the classroom.