Употребите правильную форму глагола to be: We ... at the college now. He ... a good sportsman. I ... not ready for the

We ... at the college now. - We are at the college now. - Мы сейчас находимся в колледже. 

He ... a good sportsman. - He is a good sportsman. - Он - хороший спортсмен.

I ... not ready for the lesson today. - I am not ready for the lesson today. - Я не готов сегодня к уроку.

The weather ... bad yesterday. - The weather was bad yesterday. - Вчера погода была плохой.

Last summer my parents ... in the country. - Last summer my parents were in the country. - Прошлым летом мои родители были  этой деревне.

My friend ... ... free next Monday. - My friend will be free next Monday. - Мой друг будет свободен в следующий понедельник.