1. Did you do anything interesting last weekend
2. Does he work at the institute every day
3. Will they come to see you soon
4. Did we study at school last year
5. Will she go to the theatre next week
6. Did the students work in the laboratory yesterday
7. Does Ann get up at 7 oclock
8. Are there many laboratories at our institute
9. Were there many students at the lecture
10. Will be there a library in the new building
11. Do we have two lectures today
12. Does the book have many diagrams
13. Did you have four exams last semester