1) You shouldn't smoke. It's a very bad habit.
2) The new film is great! You should see it.
3) Your temperature is high. You should call a doctor.
4) Sally shouldn't argue with her parents.
5) It's so hot outside! You should wear shorts.
6) If you don't understand something, you should ask questions.
7) You should take care of your cat.
8) Maksim should do some sports. It's healthy.
9) You shouldn't eat here. It's a museum.
10) Tanya should visit her grandparents more often.