Он вошел в комнату и увидел, что та

Он вошел в комнату и увидел, что там кто-то побывал в его отсутствие.

Результаты (английский) 1:

He entered the room and saw that someone had visited there in his absence.

Результаты (английский) 2:

He entered the room and saw there was someone had been in his absence.

Результаты (английский) 3:

he came into the room and saw that there was someone in his absence.