Sure! Here are the answers to your English test based on the questions provided:

### Choose the word whose underlined part differs from the other three in pronunciation:

1. **A. pollution**
2. **B. water**
3. **C. waste**
4. **A. recycle**
5. **D. important**

### Choose the word that differs from the other three in the position of the main stress:

6. **A. affect**
7. **C. into**
8. **A. plastic**
9. **B. pass**
10. **D. although**

### Choose the best option (A, B, C, or D):

11. **A. throw**
12. **C. water**
13. **D. but**
14. **A. if**
15. **C. protect**
16. **A. environmentalist**

### Find the underlined part that needs correction:

17. **(RECYCLE)** → recycled
18. **(TOURISM)** → tourism
19. **(ENVIRONMENT)** → environmental
20. **(POLLUTION)** → pollution

### Read the text and choose the correct opinion A, B, or C:

- The correct opinion will depend on the content of the text you read. Make sure to refer back to the text and choose the one that best represents the information provided!

If you need more clarification or have additional questions, feel free to ask!