The document contains examples of simple past tense sentences describing various people and things being in or not being in different locations. For each subject (I, you, he, she, it, we, you, they), there are three sentences - one using was or were to describe being somewhere, one using wasn't or weren't to describe not being somewhere, and one using a question with was or were to ask if they were somewhere. The document practices simple past tense by providing location-based examples for each subject.