**Here are 10 examples of using the word «mask» in English:**
1. She wore a mask to hide her identity while shopping for a surprise gift.
2. The doctor advised him to wear a mask to protect himself from catching a cold.
3. The actor skillfully played his role, hiding his true emotions behind a mask of indifference.
4. The city authorities urged residents to wear masks in public places to prevent the spread of the virus.
5. The detective tried to uncover the truth, but the suspect wore a mask of innocence.
6. The artist created a beautiful mask depicting a mythical creature for a theatrical performance.
7. The children played a game where they had to guess who was hiding behind a mask.
8. The comedian used masks and costumes to entertain the audience with his jokes and tricks.
9. The company introduced mandatory mask-wearing policy in all offices to ensure the safety of its employees.
10. The festival featured a parade of colorful masks and costumes from different cultures.