Here are the answers to the questions in the document:

### I. Phonetics
1. Circle the word whose underlined part is pronounced differently:
- 1. **A** (delicious)
- 2. **A** (holiday)
- 3. **B** (potato)
- 4. **B** (factor)

2. Circle the word whose main stress is different from the others:
- 5. **A** (freedom)

### II. Choose a correct answer
1. It's good to have someone to **C** (guide) you when you are visiting a new place.
2. Louis is bilingual **B** (in) Dutch and German.
3. Is English a **A** (official) language in your country?
4. There are **C** (some) pens in that drawer.

Feel free to ask if you need more help!