Complete the following sentences with your own ideas. Begin them with If or When

1. ....... you finish work early, .......................... .
2. ....... Dad arrives home, .......................... .
3. ....... I grow up, .......................... .
4. ....... we pollute the air, .......................... .
5. ....... the thunderstorm stops, .......................... .
6. ....... it's warm on Sunday afternoon,.......................... .