| 1 | I know how to prevent a cold. | |
| 2 | He knows how to maintain peace. | |
| 3 | The children know how to protect the environment. | |
| 4 | Squad leaders need to know how to manage teams. | |
| 5 | He knows how to get along with others and establish friendships. |
Copyright © Purple Culture Co., Ltd. 2001 - 2026. All right reserved.
