Should:

+ We should listen to the teacher.

+ We should clean the class after the lesson.

+ We should be kind to everyone in the class.

+ We should help friend in need.

+ We should put the rubbish into the bin.

Shouldn't:

+ We shouldn't fight in the class.

+ We shouldn't read comics in the lesson.

+ We shouldn't throw rubbish on the school yard.

+ We shouldn't talk in the class.

+ We shouldn't write on the walls.

(Chúc bạn học tốt)

5 câu nên làm: 

+You should wear collars

+ You should wear a scarf

+ you should wear shoes

+ you should unite with everyone

+ you should be nice to everyone

5 việc không nên làm

+ you should not sleep in class

+ You shouldn't be noisy

+ You shouldn't fight

+ you should not eat in class

+ You should not be late for school