**Question 1:**

1. Choose the word whose underlined part is pronounced differently from the others:
- w**ea**ther
- br**ea**d
- ah**ea**d
- m**ea**n

**Answer:** br**ea**d (The underlined part "ea" in "bread" is pronounced as /ɛ/, while the others are pronounced as /iː/.)

2. Choose the word whose underlined part is pronounced differently from the others:
- au**th**or
- o**th**er
- **th**ere
- brea**th**e

**Answer:** brea**th**e (The "th" in "breathe" is pronounced as /θ/, while the others are pronounced as /ð/.)

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**Question 2:**

1. Choose the word that has the main stress placed differently from the others:
- company
- atmosphere
- customer
- employment

**Answer:** atmosphere (The main stress is on the second syllable, while the others are stressed on the first syllable.)

2. Choose the word that has the main stress placed differently from the others:
- habitat
- candidate
- wilderness
- attendance

**Answer:** wilderness (The main stress is on the first syllable, while the others are not.)