1. you should

2. you should

3. you shouldn't

4. you shouldn't

5. you shouldn't

6. you should

7. you should

8. you shouldn't

1 You should  introduce yourself to newcomers in your class
2 You should  arrive on time when you're invited to someone's house
3  You shouldn't  blow your nose in public
4  You shouldn't chew gum while talking to someone 
5 You should  call a teacher by his or her first name
6  You should stand up when the teacher enters the classroom
7  You should place the chopsticks on your bowl when you finish the meal
8  You shouldn't  visit the classmates without calling first

#NOCOPY