**Ex1:** Choose the word whose underlined part is pronounced differently.

1. **C. machine** (The "-chine" sound is pronounced /ʃiːn/ as in "sheen," while the other options have different vowel sounds.)

2. **B. who** (The "wh" in "who" has a unique pronunciation, /huː/, compared to the other options, which have different vowel and consonant sounds.)

3. **C. lived** (The "-ed" ending in "lived" is pronounced /d/, while "passed," "danced," and "walked" end in /t/.)

**Ex2:** Choose the word A, B, C or D whose main stress is different from the others in the group.

1. **D. agree** (The stress is on the second syllable, while the other words have stress on the second or third syllable.)

2. **C. celebration** (The stress is on the third syllable, while the other words have stress on the second syllable.)