Language points 1. grown-up an adult E.g. I wish my parents would treat me like a grown-up. 2. I know what you mean I understand what you're saying E.g. I know what you mean - life is hard indeed. 3. lose sight of (one's) goal lose track of what one aims to do E.g. She seems to have lost sight of her goal after failing the English exam. Discussion Do you want to be a grown-up? Why? What are the differences between your life in primary school and in secondary school?