The document provides examples to practice using the present perfect tense. It contains two exercises - the first asks to fill in blanks with "already" or "yet" in sentences using the present perfect. The second asks to rephrase sentences using "just" instead of the present perfect to ask what action was recently completed, like "What has he just done? He has just gone out." The document provides practice with different verbs to build skills in using the present perfect tense.