Sure, let's identify the words whose underlined part is pronounced differently:

1. A. cover
B. go
C. flow
D. so

The word "cover" is pronounced differently. The underlined 'o' in "cover" makes a /ʌ/ sound, while in "go", "flow", and "so" it makes an /oʊ/ sound.

2. A. flow
B. love
C. stone
D. show

The word "love" is pronounced differently. The underlined 'o' in "love" makes a /ʌ/ sound, while in "flow", "stone", and "show" it makes an /oʊ/ sound.

3. A. summer
B. sun
C. glove
D. November

The word "November" is pronounced differently. The underlined 'o' in "November" makes a /ə/ sound, while in "summer", "sun", and "glove" it makes a /ʌ/ sound.

4. A. slowly
B. foam
C. cover
D. show

The word "cover" is pronounced differently. The underlined 'o' in "cover" makes a /ʌ/ sound, while in "slowly", "foam", and "show" it makes an /oʊ/ sound.

5. A. blood
B. shoot
C. shut
D. flood

The word "shoot" is pronounced differently. The underlined 'oo' in "shoot" makes a /uː/ sound, while in "blood", "shut", and "flood" it makes a /ʌ/ sound.