1
1. She is on duty today. 2. I am not ready for the lesson. 3. My mother and father are doctors. 4. They were at the theatre yesterday. 5. He was in Moscow last year. 6. He will be at a conference tomorrow.
2.
1. I have a bicycle. 2. He has a picture. 3. I had no time to help you yesterday. 4. We shall have a lot of work next week. 5. They have a car.
3.
1. Where is he? - He is at home. 2. My parents are engineers. 3. He was not at school yesterday. 4. My brother will be at school tomorrow. 5. I have two sisters. 6. He has a flat in Moscow. 7. We had a conference yesterday. 8. We will have three lessons tomorrow.