Упражнение 3. Поставьте глаголы в скобках в Present Perfect negative.
1. I_(not clean) my football boots.
2.I_(not do) my homework.
3.My brother and I_(not buy) any sweets this week.
4.It's my birthday party tobay. I _(not invite) many people.
5.He_(not wash) his hands. They're very dirty.
6.Where's Alison? We_(not see) her since yesterday.
7.Dad_(not take) a holiday since last August.
8.John_(not play) the violin since he was school.
Помогите пожалуйста!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!