You should go to bed early tonight.
I think, they should be more nice to other people.
I should eat regularly.
He should be more confident in himself.
You should put more sugar in dough.
She really should be more careful.
Gina should stop arguing with her mother.
Our neighbors should be more attentive to their children.
My sister should wear glasses because she doesn't see many little things!
Cindy shouldn't go to club alone.