This document provides a grammar summary and exercises on several topics:
1. Using "what...like?" questions to ask for descriptions and examples of answers.
2. Using "it" to talk about weather and temperature.
3. Forming the present perfect tense with "have/has + past participle" and examples of using it to talk about past experiences without a specific time frame.
4. Noting how past participles are formed for regular and irregular verbs and examples using them with the present perfect and past simple tenses.
The exercises that follow practice forming questions, writing sentences in the present perfect tense, and completing a chart on the past and past participle forms of