The techniques used for this exercise involve the use of modifying expressions to compare past and present situations in IELTS Speaking Part 3. These modifying expressions include adverbs such as "a lot," "very," "much," "totally," "far," and "really," which are used to emphasize the degree of difference or similarity between past and present situations.
By using these expressions, students can communicate their ideas clearly and effectively, and demonstrate their ability to compare and contrast different situations in English. Additionally, students should also pay attention to their use of tenses to accurately describe past and present habits and situations.