1. The lecture has just been given. 2. The floor is being swept now. 3. The equator had been crossed. 4. The equations will have been solved. 5. The children were forgiven. 6. The house was destroyed in 1998. 7. The door was locked after leaving. 8. The interesting film is being watched. 9. The pictures are being drawn at the moment. 10. The computer will be repaired next week.