1. Because Whitney felt she had only a grasp on the material presented in class, she decided to go to the teacher for additional help.2. Dentists fill any within teeth with composite resin or porcelain; in layman's terms, these holes are called cavities.3. The teacher their study of plants with a research project on any plant-related topic the students chose.4. Your feelings of toward Margaret are getting in the way of what could be a great friendship.