- English language
- Comprehension
- Age 6-8
-
level: 3
- English
คำแนะนำของผู้เขียน
After reading the story see if you can discover what pollution is and what causes it.
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Our Little Inventor - Pollution
คำแนะนำของผู้เขียน
After reading the story see if you can discover what pollution is and what causes it.