Пожалуйста помогите
Заранее спасибо ​

Как я поняла,нужно правильно записать предложения:
1 They arrived at 9 o’clock
2 Minsk was founding in the eleven century
3 He was born The twenty-two of May
4 How old is he?-I think he is twenty-one
5 What’s the two month of the year?