Exercise 2. поставьте предложения в вопросительную и отрицательную формы: 1. i am at the university. 2. he is ill. 3. they are at the factory. 4. we are students. 5. the weather was fine yesterday. 6. i was on duty 2 days ago.

1. I am not at the University. Am I at the University?.
2. He isn't ill. Is he ill?.
3. They aren't at the factory. Are they at the factory?.
4. We aren't students. Are we students?.
5. The weather wasn't fine yesterday. Was the weather fine yesterday?
6. I wasn't on duty 2 days ago. Was I on duty 2 days ago? 

1.Am I at the universaty?I'm not at the university.
2.Is he ill?He is not ill.
3.Are they at the factory?They are not at the factory.
4.Are we students?We are not students.
5.Was the weatherfine yesterday?The weatherwas not fine yesterday.
6.Was I on duty 2 days ago?I was not on duty 2 days ago.