For the question, choose the option that has the same vowel sound as the ones represented by the letter(s) underlined. beer

The word "beer" is pronounced /bɪə/ in Received Pronunciation. The underlined vowel combination "ee" followed by "r" produces the diphthong /ɪə/, known as the NEAR vowel. This is the same sound heard in words like here, fear, dear, and near.

Examining each option:

• bare is pronounced /beə/, with the SQUARE diphthong /eə/ - a different vowel from /ɪə/.
• their is pronounced /ðeə/, also with /eə/ - not a match.
• swear is pronounced /sweə/, again with /eə/ - not a match.
• serious is pronounced /ˈsɪəriəs/. The first vowel is /ɪə/, matching the vowel in "beer" exactly.

The correct answer is serious, because the "e" in its first syllable produces the same /ɪə/ diphthong as the "ee" in "beer".

Exam tip: The NEAR vowel /ɪə/ and the SQUARE vowel /eə/ are often confused because both involve an "r" in the spelling. Remember that "beer", "here", and "serious" share /ɪə/, while "bare", "their", and "swear" share /eə/. Practise distinguishing these two diphthongs.