1) You have mistaken me for someone else. (вообще тут ошибка, to mistake for, а не with).
2) I think my parents lent money to somebody.
3) Did you see Jane last Friday?
4) Have you bought a new flat this month?
5) I have read six books this week.
6) Throughout the town, church bells rang and fireworks lighted the sky.
7) My paycheck has risen by 50% since last year.
Объяснение: