Проверьте пожалуйста правильность написания 1 Polly has just perfomed her ballet dance. 2 Ron has yet prepared his costume. 3 The children have yet flowers bought? 4 The children have yet people to the concert invited? 5 Andy j...

Проверьте пожалуйста правильность написания 1 Polly has just perfomed her ballet dance. 2 Ron has yet prepared his costume. 3 The children have yet flowers bought? 4 The children have yet people to the concert invited? 5 Andy just finished the poster. 6 Jack already brought a hat for his tricks. 7 The children yet what they will do next year decided.