Complete the sentences with should or shouldn't.

1. You ...... go to bed early when you have school the next day. 

2. You ......... eat a lot of fast food - it's bad for you. 

3. You ....... find someone to ask about your homework. 

4. The teacher is annoyed with Erik - he ...........behave better in class. 

5. I really ......... play these computer games - they are a waste of time! 

6. We ............. make a reservation at the restaurant for your birthday dinner.