Refer the sentences to the Past Simple. Example: She is my friend. Last year she was my friend. 1) I am happy now. ___

1) I was happy yesterday. 2) They were at school last week. 3) It was rainy last spring. 4) It was sunny last summer. 5) Tim and Bill were in Africa.

Таким образом, глагол to be в прошлом времени Past Simple заменяется на was, если подлежащее - местоимение I, he, she, it или существительное, которым можно заменить одно из этих местоимений, и were, если we, you, they.