Do you want to borrow this book? i am just finished it, and it was brilliant. исправить ошибку и объяснить

i have just finished it. потому что это завершенное действие или present perfect 

Валле́тта[2][3]  (мальт.  belt valletta,  .  valletta)  —  столица  республики мальта,    и  политическийцентр государства[4]. названа в честь рыцаря, флотоводца, магистра  ордена иоаннитов  жана паризо де ла валлетта, защитившего остров  от турок в 1565 году  и основавшего город, позднее названный в его честь. собственно город валлетта имеет население 5719 человек (что составляет лишь 0,7  %  от всего населения страны), в то время как в пригородах проживает почти 394 тысячи человек

Moonlight sonata(1) it was a cold winter night in the rocky mountains. the temperature had fallen well below zero, but it was cosy and warm in the lounge of forest lodge, the hotel where detective lorna cummins was spending a holiday. she sat lazily in front of a huge fire.(2) suddenly, a desperate-looking man burst in the front door, shook water from his clothes and fell on the floor. it was harry lewis, one of the guests at the hotel.(3) the hotel doctor managed to revive him, and, with great difficulty, lewis told his story.(4) "my wife connie, and i love loved ice-skating..(5) "we must have skated for about twenty minutes when connie suggested having a race. she was a better skater than me and skated ahead. i called out to her to stop but she didn't listen. suddenly, the laughter stopped. then i saw a big hole in the ice. i think someone must have made it earlier to fish or something.  (6) "calm down, mr lewis," said detective cummins, touching his wet shoulder gently, "what happened next? "(7)  i tried to find her, but it was no use. so i walked back here.""let's hope for the best," said detective cummins. "she might not have fallen in the hole  they made their way back to the hotel in the freezing night(8) when he saw the skates, lewis broke down and sobbed into his hands(9) "you can stop the acting now, lewis. i know you're lying. tell me what really happened to your wife," said lorna cummins..