1.   The angels who guard the door to the garden are lowering their crossed swords.

2.   They run upstairs and push past the uniformed policeman guarding the door of the apartment.

3.   An alert watchdog guarded the door.

4.   A police officer was stationed outside to guard the door.

5.   Various androids guarded the door.

6.   Armed federal marshals patrol the streets and guard the doors.

7.   A Boston College police officer had been dispatched to guard the door.

8.   But Elway was always there, guarding the door to the ultimate prize.

9.   Eventually, she broke loose by throwing a chair at the player guarding the door and running out of the dorm.

10.   Guarded door.