Use of English. Complete the modal verb. Must/mustn't/should/shouldn't 1. My brother __, use a towel when he goes to the gym for hygienic reasons.

2. We __ talk during the exam.

3. You __ change your shirt. It's dirty.

4. We __ wear uniforms at work.

5. You __ talk to her. She isn't honest with you.

1. My brother must, use a towel when he goes to the gym for hygienic reasons.
In this sentence, we use the modal verb "must" because it indicates a strong obligation or necessity. It is necessary for my brother to use a towel at the gym to maintain hygiene standards.

2. We must not talk during the exam.
Here, we use the negative form of the modal verb "must" - "mustn't." It means that it is forbidden or not allowed to talk during the exam. It is important to maintain silence and not disturb others during the exam.

3. You should change your shirt. It's dirty.
In this sentence, we use the modal verb "should," which indicates a suggestion or advice. It suggests that it would be a good idea for the person to change their shirt since it is dirty. Changing into a clean shirt would be more appropriate.

4. We should wear uniforms at work.
Here, we again use the modal verb "should" to indicate a suggestion or recommendation. Wearing uniforms at work is encouraged, as it helps create a professional and consistent appearance for the employees. It is considered appropriate and respectful in many workplaces.

5. You shouldn't talk to her. She isn't honest with you.
In this sentence, we use the negative form of the modal verb "should" - "shouldn't." It suggests that it is not advisable or recommended to talk to her because she is not honest with you. It is better to avoid interacting with someone who is not truthful or trustworthy.

Remember, modal verbs are used to express various degrees of possibility, obligation, permission, advice, etc. It is important to understand the context and meaning of each modal verb to accurately complete the sentences.