Поставьте следующие предложения в отрицательную и вопросительную формы. 1. they are discussing their performance. 2. i’m going to have a test in english. 3. i play the piano perfectly. 4. sometimes we had music lessons in a great hall. 5. we had lunch at work.

1. They are not discussing their performance.
Are they discussing their performance?
2. I am not going to have a test in English.
Are you going to have a test in English?
3. I play the piano perfectly.
I don't play the piano perfectly.
Do you play the piano perfectly?
4. Sometimes we didn't have music lessons in a great hall.
Did you sometimes have music lessons in a great hall?
5. We didn't have lunch at work.
Did you have lunch at work?