Между тем Пётр продолжал стучать. Когда же отворили, то увидели его и изумились.
But Peter kept on knocking, and when they opened the door and saw him, they were astonished.
But Peter continued knocking, and when they opened, they saw him and were amazed.
But Peter continued knocking; and when they had opened the door, they saw him and were amazed.
Meanwhile, Peter continued knocking. When they finally opened the door and saw him, they were amazed.
But Peter continued knocking: and when they had opened the door, and saw him, they were astonished.
Now Peter continued knocking; and when they opened the door and saw him, they were astonished.
But Peter continued knocking: and having opened, they saw him and were astonished.