1.The teacher ____________ the door. (not/to close)
2. _________you___________the washing-up? (to do)
3. They_____________ the printers. (to check)
4. ____________your grandmother____________ at birds? (to look)
5. We_____________ the checkpoint. (not/to pass)
6. ___________they____________ to help? (to try)
7. She______________ to the centre of the town. (not/to walk)
8. _______________the policemen____________ into the bank? (to run)