She rented me her spare room.=She rented her spare room to me.
She rented me her spare room.=She rented her spare room to me.
彼女は空き部屋を私に貸してくれた.
⦣ 前の文は rent A (人) B (部屋など) で「AにBを貸す」.
This room rents for 50,000 yen a month.
This room rents for 50,000 (読み方: fifty thousand) yen a month.
この部屋はひと月5万円で貸される[部屋代は月5万円です].