1.   A large stone blocked the entrance to the tomb.

2.   Fifty students locked arms to block the entrance to the building.

3.   Five were arrested on a charge of trying to block an entrance to the Treasury Building.

4.   She stood firm, blocking the entrance.

5.   The drums lead us through the warren of narrow alleys to a courtyard whose entrance is blocked by a knot of people.

6.   The rubble had temporarily blocked the entrance to the cavern below the Horseshoe Falls.

7.   The stone that blocked the entrance to the tomb was placed there for a purpose.