Concept:Choose the word whose vowel sound is identical to the vowel sound in "drought".
Explanation:The word "drought" is pronounced /draʊt/.
Its underlined vowel sound is the diphthong /aʊ/.
Check each option:
A. "drown" is pronounced /draʊn/ — it has the same /aʊ/ sound.
B. "draft" is pronounced /drɑːft/ — this vowel sound does not match.
C. "should" is pronounced /ʃʊd/ — this vowel sound does not match.
D. "tough" is pronounced /tʌf/ — this vowel sound does not match.
Therefore, the word that shares the same vowel sound with "drought" is "drown".
Answer:A. drown