Grammar_The Imperative "The Classroom Rules"

Imperative:
Orders - Classroom Rules 

1st         Raise your hand if you want to speak and please be quiet if the teacher is speaking.
2nd        Do your homework on time.
3rd         Correct your presentation.
4th         Excuse an absence with an official justification.
5th         Read the book of the term, it is compulsory for the mark.
6th         Pass the exam in June, if you fail you have an extra exam in July.
7th         Show your workbook for the marks. Write with pencil, please.
    

Suggestions with Let’s

    Affirmative                       Negative

         Let’s go to the cinema.                                                Let’s not go out this Saturday. Stay at home.

Song_Don't Worry, Be Happy - Bobby McFerrin