Dạng câu controlling idea Circle the word that best describes each of the concluding sentences below. 1. If you follow these steps, you will never lose your keys again. a. (prediction) b. opinion c. warning 2. Students who are not careful with credit cards can go into debt quickly, a. prediction b. opinion c. warning 3. Venice, Italy, is the most beautiful city in the world. a. prediction b. opinion c. warning 4. You will be able to produce a beautiful paper crane with only a little bit of practice. a. prediction b. opinion c. warning 5. There are many reasons why movie stars make poor politicians. a. prediction b. opinion c. warning 6. The desert is a beautiful but dangerous place to hike, so do your research and take time to prepare carefully. a. prediction b. opinion c. warning