| 1 | We were aware of the problem beforehand. | |
| 2 | Please prepare your sign-in sheet and ID in advance before the event. | |
| 3 | Before traveling, we need to make a detailed plan in advance. | |
| 4 | In order to maintain confidentiality, employees need to sign a confidentiality agreement in advance. | |
| 5 | If you want to make an appointment with a doctor, be sure to call in advance to avoid wasting time. |