Someone has already told him to report for duty(nhiệm vụ) at six.
=> he got a report from someone at 6 o'clock
The burglars had cut an enormous hole in the steel door.
=> the way the steel door is gouged out by the thieves

3.he has  already been told to reporst for durty at six 
4. An enormous hole have been cut by the burglars in the steal door