.---Why did he___ that the man we met on the bridge was his father? ---God knows!
_______ has already been pointed out, grammar is not a set of dead rules.
He was hiding behind the door_______ he could see what was happening.
Carol said the work would be done by October, _______ Personally I doubt very much.
After living in Paris for fifty years he returned to the small town_______ he grew up as a child.
His arrival_______.