Question

Choose the word that has /ɔ:/sound.
A)work
B)mom
C)book
D)door​

Answer 1

work is the answer....

....

Answer 2

The word "work" has /ɔ:/ sound. So correct option is option(a).

• The word "Door" has the sound of [o] which is a close-mid back rounded vowel.
• The word "Book"  ahs a sound of a near-close back rounded vowel.
• In the word "mom", the sound is a mixture of close-mid back rounded vowels and the near-close back rounded vowels.
• the sound of /ɔ:/ is a low, back, ​tense vowel as in the word "work".