Помогите с английским пожалуйстааа

Я уже сказал что нет

2) Mrs Smith had brought some fruit and vegetables by noon, hadn't she?
3) The second lesson didn't last long, did it?
4) The girl was singing a nice song when we entered, wasn't she?
5) The car had stopped before the policeman saw it, hadn't it?
6) Paul had been working with Ann for a year before she left, hadn't he?
7) Three guests hadn't arrived by 7 p.m., had they?
8) The sisters were looking for the keys when their mother came, weren't they?
9) The English teacher gave a lot of homework, didn't he/she?
10) Thousands of people were present at the match, weren't they?
11) Nancy had cooked dinner by 3 p.m., hadn't she?