1.
difficult to think it's true
7.
to go away from someone or something
8.
official permission for someone to drive a car, received after passing a driving test, or a document showing this
9.
to leave your job or stop working because of old age or ill health
10.
a young person between 13 and 19 years old
11.
a written message from one person to another, usually put in an envelope and sent by post
