The document provides exercises to practice using modal verbs in different contexts. The summary focuses on the structure and content of the exercises:
The exercises consist of 4 sections with gaps to be filled with modal verbs in their positive or negative forms. The contexts include situations involving obligations, permissions, possibilities and necessities which require the use of modal verbs like "can", "should", "must" and "have to". The exercises aim to reinforce understanding and appropriate usage of modal verbs.