– Tracks the history of payment and the rise of virtual currency. How to Use the Answer Key Effectively Read First, Check Later
While the answer key is primarily intended for teachers, several academic platforms provide verified digital copies for self-study purposes: : This platform hosts a comprehensive Reading Explorer 4 (Third Edition) Answer Key Reading Explorer Upper Intermediate Answer Key
If you have a purchased student book with a MyELT access code, teachers can register for an instructor account. The official Teacher’s Guide (which includes the answer key, unit tests, and video scripts) is available here as a PDF download. – Tracks the history of payment and the
| Unit | Question Type | Example Answer | |------|--------------|----------------| | Unit 1 – The Power of Image | Main Idea | “Photographs can shape public opinion more powerfully than words.” | | Unit 2 – Food and Health | Vocabulary | “Eliminate” (to remove completely) – “The diet eliminates processed sugar.” | | Unit 3 – Animal Intelligence | Inference | The author implies that tool use is not exclusive to humans. | | Unit | Question Type | Example Answer