1. They are very strong and healthy.There is no need for them______ (have) a rest. They need______( work)two more hours. 2. Li Hua doesn"t seem ______( study) hard at school. 3. We often go to the movies with friends on______(weekend) . 4. We students should______(take) out all the things that will be used before a class begins. 5. Can you give me some advice about how______ (find) my missing dog?