81.

1)  You should have a holiday. You shouldn’t  work so hard.  

2)  You should go to the dentist. You shouldn’t eat so many sweets.  

3)  You should take an aspirin. You shouldn’t read without your glasses.

4)  You should take some medicine. You shouldn’t smoke so many cigarettes.  

5)  You should tell him that you need it. You shouldn’t give it to him.  

82.

1)  Do you think I should give it back to the shop?

2)  Do you think I should ask my boss for more money?  

3)  Do you think I/we should wait a bit longer or go without him?  

4)  Do you think I/we should wake her up?  

5)  Do you think I/we should go with her?  

6)  Do you think we should take a taxi?  

7)  Do you think I/we should buy a new one?