помоги пожалуйста!!!!! срочно ​

Ответ:

1.He didn't play tennis last Friday

2.An old woman doesn't cook for her family

3.Boys aren't students

4.We couldn't help them

5.You didnt't worked hard yesterday

6.I wasn't ill 2 days ago

7.People don't receive their salary twice a month

8.My friend will not play the guitar to us