Giving advice by using “ should” or “shouldn’t” stay up late, drink coffee, do morning exercises regularly, take a hot bath, go to bed early, eat a lot of fruits and vegetables, take some aspirins, see the doctor, drink hot water, brush your teeth twice a day, eat healthy foods, keep your nails short and clean, wash your hands before having meals, see dentist, eat many candies, drink cold water, eat too much, Should Shouldn’t 1. Tony has a bad toothache 2. Quan has a bad cold 3. Phong has a stomachache 4. Phong has a sore throat