Как это вы умудрились потерять книг

Как это вы умудрились потерять книгу? Вы должны были положить ее в портфель, тогда вы бы ее не потеряли.

Results (English) 1:

How is it you have managed to lose the book? You should have put it in the portfolio, then you would not have lost.

Results (English) 2:

How did you manage to lose a book? You should have put it in the bag, then you would not have lost her.

Results (English) 3:

As you shrunk to lose a book? You should have put it in the portfolio, then you would not have lost.