You should...
eat a lot of fruit
What's the matter with you?
I have a fever.
Why shouldn't I play with the stove?
Because you may get a burn.
What's the matter with you?
I have a stomach ache.
You should...
go to the dentist
You shouldn't ...
carry heavy things
Don't ...
run down the stairs
What's the matter with you?
I have a sore throat.
Don't...
climb the tree
Why shouldn't I ride too fast?
Because you may break your arm.
What's the matter with you?
I have an earache.
Don't...
play with matches
You shouldn't ...
eat a lot of sweets
You should...
take a rest