### Checking Your Understanding

Underline the modals in the following sentences:

1. Students need to be diligent in studying and participating in class.
2. Parents must listen not only to what the children are saying but also to what they are not saying.
3. Children may join activities outside the school premises, provided their parents know about it.
4. Students cannot choose which rules to obey.
5. People must be mindful of their words and actions. It affects others on many levels.
6. Some may express their own opinions but they have to be tactful about it.
7. Words can hurt or they can be encouraging.
8. Anybody could take the entrance test in the vocational school.
9. You can't graduate if you fail one course.
10. You mustn't waste your life in something too temporary or trivial.

Modals are auxiliary verbs that express necessity, possibility, or permission. In the sentences provided, modals such as need, must, may, cannot, should, could, mustn't, and have to have been used to convey different shades of meaning.

For example, in sentence 3, may expresses permission while in sentence 4, cannot indicates impossibility. Understanding the context in which modals are used is key to grasping their intended meaning in a sentence.

Recognizing and correctly identifying modals is essential for understanding the nuances of English grammar and communication.

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