Задание 
   Choose the sentences where we can use the modal verb "may". More than one answer is possible.
Tick the correct answers.
- She _____ play the piano very well. She studied in the music school.
- Jack _____ swim very well.
- Their boss said they _____ leave early today.
- You _____ bring a friend to the party. I allow you.
- They _____ not attend the meeting tomorrow. They are having a class at this time tomorrow.
- _____ I call in the evening?