| 1 | The teacher told us to keep our minds clear and listen carefully. | |
| 2 | It is crucial to keep a clear head in emergency situations. | |
| 3 | Stable emotions and clear thinking are the keys to success. | |
| 4 | He slapped his face with both hands, trying to wake himself up. | |
| 5 | I like to drink a cup of coffee in the morning to make myself more awake. |