вставь was или were it ... vicky's tenth birthday. she ... in the garden. hes friends ... in the garden too. the day ... nice. the trees ... green. her mother and father ... in the house. we ... in the park. i ... at home.

В простом прошедшем времени глагол to be имеет форму was для местоимений I, he, she, it и форму were для местоимений we, they, you.

It was Vicky's tenth birthday. She was in the garden. Her friends were in the garden too. The day was nice. The trees were green. Her mother and father were in the house. We were in the park. I was at home.