Now they did become a little annoyed, and it was not clear whether it was his father's behaviour that annoyed them or the dawning realisation that they had had a neighbour like Gregor in the next room without knowing it.
Ciertamente se enfadaron un poco, no se sabía ya si por el comportamiento del padre, o porque ahora se empezaban a dar cuenta de que, sin saberlo, habían tenido un vecino como Gregorio.